uk: Комп'ютерні науки

description: This talk introduces the OpenIKED project, the latest portable subproject of OpenBSD. OpenIKED is a FREE implementation of the most advanced Internet security "Internet Key Exchange version 2 (IKEv2)" Virtual Private Network (VPN) protocol using the strongest security, authentication and encryption techniques. The project was born in need of a modern Internet Protocol Security (IPsec) implementation for OpenBSD, but also for interoperability with the integrated IKEv2 client since Windows 7 and to provide a compliant solution for the US Government IPv6 (USGv6) standard. The project is still under active development; it was started by Reyk Floeter as "iked" for OpenBSD in 2010 but ported to other platforms including Linux, FreeBSD and NetBSD in late 2012 using the "OpenIKED" project name.

uk: вхід без авторизації

name: OpenIKED: A portable IKEv2 VPN implementation


Runtime Process Infection (part 1)

Shawn Webb

type: Person

cs: Informatika

de: Informatik

fi: tietojenkäsittelytiede

uk: Комп'ютерні науки

en: Computer Science

fr: Informatique

da: Datalogi

es: Ciencias de la Computación

nl: Informatica

cs: Technické vědy

de: Ingenieurwissenschaften

fi: tekniikka

uk: Інженерія

en: Engineering Sciences

fr: Ingénierie

da: Ingeniørvidenskab

es: Ingeniería

nl: Engineering

description: This presentation will instruct participants on how to inject arbitrary code into a process during runtime. Writing malware on Linux isn't an easy task. Anonymously injecting shared objects has been a frightful task that no one has publicly implemented. This presentation will show how and why malware authors can inject shared objects anonymously in 32bit and 64bit linux and 64bit FreeBSD. The presenter will be releasing a new version of a tool called libhijack. libhijack aims to make injection of arbitrary code and shared objects extremely easy. There will be a live demo injecting a root shell backdoor into multiple programs during runtime.

TIB AV-Portal

type: Service

type: WebContent

type: MediaObject

@language: en

cs: přihlášení není vyžadováno

de: keine Anmeldung erforderlich

uk: вхід без авторизації

en: no login required

nl: geen login vereist

name: Berkeley System Distribution (BSD), Andrea Ross

type: Organization

cs: Video

de: Video

fi: Video

uk: Відео

en: Video

fr: Vidéo

da: Video

nl: Video

es: Video


Runtime Process Infection (part 2)

uk: Комп'ютерні науки

uk: вхід без авторизації


uk: Комп'ютерні науки

description: A brief tutorial for the subclassing part of the FreeBSD configuration system (known for years as newbus). The author will present work bringing this power to legacy portions of the system, as well as suggestions for future work in this fruitful area. This lecture will present a background of the FreeBSD driver system. The subclassing part of this system is radically under-documented. A companion document for this lecture will amplify the current documentation and provide additional examples to illustrate the power of the subclassing system. The lecture will then shift to reviewing the work the author has done to use these techniques to help map items in the kernel device tree to device nodes in the devfs tree.

uk: вхід без авторизації

name: Subclassing in Newbus: realizing newbus' potential


uk: Комп'ютерні науки

description: Over five years ago I joined a Northern Internet Service Provider (ISP) in Yellowknife, NWT, Canada providing high-speed internet, email, website hosting, and other specialized network services to approximately 50 communities located within the Northwest Territories and Nunavut. Our satellite headend was located in Ottawa. Originally, each site systems (known as earth stations) ran FreeBSD 5.2.1, but, we could not run the same version of FreeBSD on newer hardware. Thus, we started using FreeBSD 6.2. Different sites running different versions of the FreeBSD operating system created many headaches when debugging software issues for a given service and while migrating services within a community from one server to another. Also, due to a lack of foresight, a central repository was not implemented and thus with the use of the newer version of FreeBSD the diverse software stack versions were not the same. To solve the software stack issue we implemented FreeBSD 5.2.1 instances within the FreeBSD jail framework before jailutils and the Warden application from PC-BSD. Custom scripts were created to launch and terminate various jail instances. However, this still caused issues because the system tools used in diagnostics on the host system were inconsistent across the various sites. It was my job to develop a strategy to update the base operating systems on all of our systems located across the entire network. To do this I relied heavily on my past experience of administering and updating Diskless Gentoo Linux instances at MUN and reading the FreeBSD Handbook. I took this task one step further and created a custom FreeBSD ISO based off of FreeBSD RELEASE coupled with SYSLINUX's PXELINUX framework. I was able to install the custom OS from a known stable state. I would like to present this material to the BSDCan attendees in order to share my experience with others and to show that you can accomplish the same task without spending a large amount of money on proprietary software.

uk: вхід без авторизації

name: Tales from the North: System Administration of a Geographically Disperse Network


uk: Комп'ютерні науки

description: Running an ISP can be a tedious task of putting different pieces of boxed hardware together to make the network work, but can also be a fun and entertaining work of research on the right solution to accommodate your customer's needs. The market is full of vendors, big and small, ready to sell you a pre-packaged solution for your (supposed) needs, but what if you'd like to use BSD to serve your customers ? This talk will show how we are running a full ISP on solutions brought out using facilities and software easily built on top of BSD systems, and will delve into the challenges we have faced in the set up of the distributed architecture, with POPs in different european countries. Along with this, we are carrying out an analysis and comparison of costs and features between commercial and open source solutions, characterizing the decisions we made and the results we carried out. As an ISP, we not only offer access service, but we also deliver streaming services through a distributed CDN, also built on top of BSD. This will be a chance to delve into the different pieces of software used for encoding, distributing and streaming videos over the BSDs, and the technologies we used to interact with the underlying network. While being a non highly technical talk, the goal is to show the audience that using BSD in an ISP and content distributor environment is perfectly possible and will deliver the same quality of service of the packaged solutions, yet keeping your costs under control and allowing you a high degree of customization. This will be carried on showing - as already stated - a real world example of our project running solely with the power of BSD.

uk: вхід без авторизації

name: The BSD ISP: Serving data and video solely using BSD


The FreeBSD.org cluster refit

uk: Комп'ютерні науки

description: A way to do project infrastructure, and a way not to; or the FreeBSD.org cluster before and now. The FreeBSD project is rather old and as such has had the infrastructure for running the project, such as CVS, Mail, and web servers, for a long time. The basic setup had been the same for more or less 10 years with the result that it was very complicated, had many inter-dependencies and of course no documentation on how it was set up. Security wise the old setup was out of date with current practices. In 2012 we had to move from one datacenter to another, and in the process it was decided to redo the setup more or less from scratch with the goals of making the setup simpler, more robust, segregated, secure and basically something which didn't cause the administration team to lose sleep over. The presentation will, for historic reference, present the old setup as an example of how not to have a cluster set up in 2012, and how we decided to set up the new one to meet our goals. The design of the new setup with heavy partitioning of network and hosts, using of FreeBSD for everything where possible including routers running FreeBSD 10-CURRENT. The impact of the 2012 November FreeBSD.org compromise on the infrastructure will also be discussed and what was learned from that.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: This presentation will cover the current state of wireless technologies in BSD (at least focusing on 802.11 and Bluetooth) and how well (or not) each is implemented and supported by the various BSDs. This includes the classic operating modes (hostap and station modes) as well as newer developments (TDMA, 802.11s, P2P/TLDS, Bluetooth/802.11 PHY sharing.) It will then cover upcoming technologies - 802.11ac, 802.11ad, hybrid operating modes, aggressive mobile power saving technologies - with the technical, architectural and structural changes required to make these technologies a reality.

uk: вхід без авторизації

name: The future of wireless networking - mobile, gigabit and beyond


uk: Комп'ютерні науки

description: There was a time when brute force attacks were all rapid-fire and easily blackholed on sight. That changed during the late 2000s: The low intensity, widely distributed password guessing botnet dubbed "The Hail Mary Cloud" that made its debut in 2007 was remarkable for three things: - the service it targeted was SSH, an almost exclusively Unixish-based phenomenon - the glacial pace of attack from each of the participants - the apparent stay-below-the-radar profile Against ridiculous odds and eventually even some media focus, the botnet apparently thrived for several years. This session presents the known facts as seen by an early observer, proceeds to an analysis of the patterns observed during the various encounters with the phenomenon, with conclusions that may have implications for current detection and prevention stratgies and points to remember when formulating future approaches to network security.

uk: вхід без авторизації

name: The Hail Mary Cloud And The Lessons Learned: The Future Of Botnets: Low Intensity, Distributed


uk: Комп'ютерні науки

description: The well-known IP and TCP/UDP (and less well known, ICMP) checksums seem pretty much straighforward. Digging into the network stack reveals a surprising complexity dealing with them and updating. The rise of hardware checksum offloading didn't exactly make things easier. It goes so far that the old "pseudo header checksum" hack where parts of the checksum are precaclucated on the template PCBs and updated on the way out made its way into some of the hardware offloading engines. The talk explains how IP and protocol (UDP/TCP and ICMP) checksums are handled in the OpenBSD network stack and pf, both traditionally and after redesigning. This includes a closer view on performance impact - while the IP checksum only covers the header, the protocol checksums cover the entire payload, which makes them comparably expensive to verify recalculate. While the actual math is dirt cheap, the data access is not, and for forwarded packets we would not access the payload otherwise. Several different output pathes like the regular IP output, the bridging case and various tunneling/encapsulation mechanisms make things harder. The redesigned checksumming mechanism pretty much centralizes the checksum handling instead of having it all over the place, making dealing with the checksums in the rest of the stack much easier. It also allows us to benefit a little more from the NICs' offloading capabilities and fixes a long-standing bug which prevented us from enabling protocol checksum offloading on the RX side on many chipsets.

uk: вхід без авторизації

name: The surprising complexity of checksums in TCP/IP: reworking the checksum handling in the OpenBSD network stack


uk: Комп'ютерні науки

description: I use to talk at various BSD conferences about projects I was/am working on (GEOM, GELI, ZFS, Capsicum, HAST, auditdistd and others). This time I'd like to talk about the meeting point of reality and some of those technologies: a security appliance I was working on for the last year. The talk will demonstrate practical use of various technologies available in FreeBSD (Capsicum, GELI, ZFS and others). The appliance needs to process and store very sensitive data at high speeds, so strong sandboxing provided by Capsicum and strong encryption provided by GELI were a must. The talk will also provide practical hints how to build and manage appliance, eg. how to create installation image with all dependencies from source, how to implement secure and reliable upgrades with an option to downgrade, how to monitor health of hardware components and how to cluster multiple nodes together.

uk: вхід без авторизації

name: FreeBSD, Capsicum, GELI and ZFS as key components of a security appliance


uk: Комп'ютерні науки

description: This talk will outline the strategy used to migrate a small Canadian software company's Linux-based server infrastructure to FreeBSD. Part advocacy-strategy and part best-practices, the hope is that you'll come away with some extra tools to promote implementation of FreeBSD in your workplace. ExperiencePoint is a small (20 person) Canadian company that creates training simulations as web applications. The business is wholly dependent on its web server infrastructure for delivering its product. In 2011, I started working for ExperiencePoint and began the process of replacing its aging collection of Linux servers with a more robust FreeBSD server infrastructure. The Linux servers in question had been set up in a hurry, and the skilled software engineers who had set them up were not professional systems administrators. Linux was selected as the server operating system, but there were great opportunities for improvement and change. This talk is the story of that change. In addition to addressing the management concerns of replacing a "known" (Linux) with an "unknown" (FreeBSD), we'll explore the kinds of opportunities you should recognize in Linux environments you may come across. If you can improve reliability, reduce risk and improve performance, that's even better job security than switching to an operating system that nobody else knows.

uk: вхід без авторизації

name: Case Study: Switching from Linux to FreeBSD: How technology supported advocacy in ExperiencePoint's conversion


uk: Комп'ютерні науки

description: This webinar begins with a brief introduction on the use of persistent identifiers in research followed by an outline of how UNSW has approached supporting discovery and citation of grey literature. #1: DOIs to support citation of grey literature 1 ) UNSW service for DOIs to support citation of grey literature Dr Daniel Bangert, Senior Data Librarian, Library Repository Services, UNSW Library At UNSW, grey literature materials are often important parts of the scholarly record which can contribute to research impact, and thus there is a need to make them discoverable and citable. After investigating various options, UNSW implemented a service to assign persistent identifiers in the form of DOIs to grey literature held in UNSW Library repositories. A set of conditions was developed to determine eligibility for a DOI and govern their assignment. Accompanying workflows were put in place to enable DOI requests from UNSW researchers and also meet the needs of researchers or administrators that produce grey literature on a regular and ongoing basis. 2 ) PIDs for research Natasha Simons, Senior Data Management Specialist, ANDS Natasha will provide a quick overview of PiDs for research and this webinar series, and then give an overview of the ANDS Guide to Persistent Identifiers

uk: вхід без авторизації

name: PiDs Short bites #1 - DOIs to support citation of grey literature - 24 May 2017

Australian Research Data Commons (ARDC)

addressCountry: AU

addressLocality: Melbourne

addressRegion: Victoria


uk: Комп'ютерні науки

description: Making documentation easier and better by automating tests for errors in language, formatting, and usage. Few people like to work on documentation. There are numerous rules for wildly-varying documentation formats, many rarely used and hard to remember. An automatic proofreader to check for errors ranging from spelling to meeting all the arcane formatting rules of the different toolchains would relieve much of the stress. Not only will this encourage improving the documentation, it helps to prevent errors in the first place, and detect those that have slipped through already. Clean, consistent files are easier to maintain, expand, and convert to new formats. The automated proofreader, named "igor" after a famous lab assistant, helps the writer focus on improving the content of their document.

uk: вхід без авторизації

name: Automated Documentation Proofreading: igor: Making Documentation Easier


uk: Комп'ютерні науки

description: For the sixtth year running, BSDCan will have a WIP (Works In Progress) session, with presentations on diverse topics. The format remains essentially the same: in a one hour period, audiences are entertained and informed by a rapid fire series of short talks on interesting new or on-going work by individuals or groups. Slides aer permitted, but not obligatory; pictures are highly recommended. Topic areas include new open source software projects, works in progress for future releases of existing projects, student projects, etc. WIP topics this year may make good conference papers next year! The number of slots is limited, and experience suggests there will be more takers than slots. Sign up well in advance to be assured a spot. Please e-mail wip@bsdcan.org to sign up. Send a one or two paragraph summary of the topic to be presented, and the names of the person(s) presenting it. Also, please give a time estimate -- typically times will be one to five minutes. The time limit will be strictly enforced -- you will be cut off if you try to run over! The WIP e-mail registration deadline is May 9, after which remaining slots (if any) may be signed up for in person. Any slides must be received by the WIP session chair by, at latest, May 12 at 11:59pm GMT. The session chair this year is George Neville-Neil.

uk: вхід без авторизації

name: BSDCan 2012: Work in progress - Short stories from projects around the world


uk: Комп'ютерні науки

description: Razorback is a framework for an intelligence driven security solution. It consists of a large number of components and dependencies that make the barrier to deployment quiet large for the uninitiated. This talk aims to shed some light on the process of creating a virtual appliance that enabled us to reduce the barrier for people that want to test the system. Lowering the barrier to entry for a complex project is key for improving deployment of your project, by building a virtual appliance you can cut the setup time from over a day to just a few minutes. This tutorial aims to cover setting up a VM build environment that will allow you to create custom virtual appliances for you projects that are easy for people to deploy. We will cover: * Setting up the build host for PXE based installation of the appliance. * Tuning the installer to install only the components that we need to the vm to function. * Deploying tinderbox to build the systems dependencies. * Installing the dependencies via the installer * Deploying freebsdadmin on the VM to provide a management interface. * Customizing the base freebsdadmin package. * Adding custom applications to freebsdadmin to manage your application. The aim is provide a hands on experience so attendees should bring a laptop capable of running 2 small FreeBSD virtual machines. Attendees should also have some basic FreeBSD systems administration experience. By the end of the session attendees should have a firm grasp on the process of creating a virtual appliance using the freebsdadmin project as the management interface.

uk: вхід без авторизації

name: Building a FreeBSD based Virtual Appliance: How we built the Razorback appliance


CAM Target Layer

uk: Комп'ютерні науки

uk: вхід без авторизації


Capsicum

uk: Комп'ютерні науки

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Designing and developing the Ethernet Switch Framework for FreeBSD. FreeBSD is making great strides to be fully functional on many typical WLAN routers. Furthest along is support for devices based on the Atheros series of System-on-a-Chip products. Thanks to Adrian Chadds relentless work, many devices can be used with FreeBSD-current for routing between LAN and WLAN interface. The Ethernet Switch Framework closes one of the last remaining driver gaps to fully enable build an embedded FreeBSD version for such devices. Currently under development, the Ethernet Switch framework enables configuration of built-in ethernet switch controllers. This allows users to create powerful networking setups without any additional hardware. Even though these routers are typically not very expensive, the switch controllers offer a number of features typically only found in more expensive enterprise equipment. This allows users to create interesting and powerful network setups at home or in small offices. This talk will present the current state of development, the architecture of the driver framework and will detail the implementation of a typical switch driver. It will also go into some of the architectural challenges that needed to be solved to deal with hardware configurations typical for embedded systems that are uncommon in the world of regular desktop and server systems.

uk: вхід без авторизації

name: Ethernet Switch Framework: Fully utilize your WLAN router


uk: Комп'ютерні науки

description: This paper describes the design and implementation of the FreeBSD operating system port for the QorIQ Data Path Acceleration Architecture, a family of communications microprocessors from Freescale. These chips are a modern, multi-core, PowerPC based SoCs, which feature a number of specifically designed peripherals, addressed for the high performance networking devices, which are increasingly common in modern communication infrastructure. The primary focus is the Data Path Acceleration Architecture (DPAA) with the new approach to network interface architecture. It has significant influence on the FreeBSD device drivers design and implementation. The paper describes how the full network functionality was brought forward, and also covers other major development tasks like the e500mc quad-core SMP bring-up and support for other integrated devices.

uk: вхід без авторизації

name: FreeBSD on Freescale QorIQ Data Path Acceleration Architecture Devices


uk: Комп'ютерні науки

description: Two technologies; both new, exciting, with lots of new features, so why not put them together and have even more fun? This talk is about my effort to combine two (relatively) new technologies; Stream Control Transmission Protocol (SCTP) and the computer language Go, by implementing the functionality of SCTP as a library in Go. SCTP is a reliable message oriented transport protocol, has resistance against flooding and masquerade attacks and includes congestion avoidance procedures. First standerdized in October 2000 by the Internet Engineering Task Force (IETF) in RFC 2960 and later updated by RFC 4960. Go is a concurrent, statically typed compiled and garbage collected language with a syntax broadly similar to C. The initial design of the programming language Go started as an internal Google Inc. project in 2007 and was officially announced and open sourced in 2009. FreeBSD has the reference implementation for SCTP and Go is also available on this platform, so it made sense to do the first implementation on this OS. I'm currently finishing my Masters in Computer Science (part time) and my dissertation subject is the implementing of SCTP in Go. I've already started to implement the library and hope to finish my dissertation in about 2/3 months time. The talk will be based on this work. Outline of the talk (this roughly follows the outline of my dissertation): * Give some extra background information about Go and SCTP, describe characteristics etc. * Explain my approach on how to implement a new network library in the Language Go. * Do a comparison on how network programming is done (first TCP) in C and Go. * Show how TCP is implemented in Go. * Show how I implemented SCTP in Go. * Do a comparison on how network programming is done with SCTP in C and Go. * Demonstrate the performance differences between similar data transfer techniques of TCP, UDP and SCTP * Demonstrate the performance differences between the same data transfer techniques implemented in C and Go. * Question time

uk: вхід без авторизації

name: Go SCTP!: SCTP implemented in the language Go


Modernising FreeBSD package management

uk: Комп'ютерні науки

description: pkgng is a new package manager for FreeBSD, it aims at bringing modern package management features for FreeBSD Pkgng is a completely new package manager rewritten from scratch. It aims at replacing the old pkg_install. It is developed on top of new libpkg which is the high level library that does all the package management, it brings new features such as safe upgrade, (multi) repository support, integrity checking and more. It has been designed to be extensible while remaining fully compatible with the current FreeBSD ports tree.

uk: вхід без авторизації


OpenBSD network stack evolution

uk: Комп'ютерні науки

description: Dealing with the IP checksum and the protocol checksums (foremost TCP and UDP) in the network stack is surprisingly complex. Having stumbled over an unexpected performance penalty from the IP checksum, I always had this area on my mental todo - and when we stumbled over a really nasty piece of code in pf dealing with these checksums, I re-evaluated and changed the IP checksumming in our stack, for performance and to make better use of checksum offloading to network cards. Changing the protocol checksums in the same way is harder and in the works. ALTQ has been with us for more than a decade - last not least Kenjiro Cho and myself merged it with pf in 2003. ALTQ has always been a research project, and tought us and the entire community a lot of important lessons. Now it is time to re-evaluate - the entire "glue" between the actual queueing disciplines (of which just two remain, prio and bandwidth shaping) gets redesigned and -implemented.

uk: вхід без авторизації


Optimizing ZFS for Block Storage

uk: Комп'ютерні науки

description: The ZFS file system has been heavily tuned for workloads where file rewrite activity is minimal or is aligned and sized to match ZFS's native record size. Exporting ZFS storage to block consumers, however, presents a situation where every write is rewriting an existing block, and unaligned writes incur a performance killing synchronous read. This paper and talk presents Spectra Logic's optimizations to ZFS's data management layer (DMU) to convert the majority of these synchronous reads to be asynchronous and, for sequential access patterns, to avoid them entirely. We also describe a new scheme that allows concurrent reads to be issued through the DMU without the need to allocate a thread context for each I/O. The result, as implemented and tested using the FreeBSD operating system, is up to a five fold performance increase for unaligned write workloads and a three fold improvement for random read workloads.

uk: вхід без авторизації


Recent Advances in IPv6 Security

uk: Комп'ютерні науки

description: During the last few years, the UK CPNI (Centre for the Protection of National Infrastructure) carried out the first comprehensive security assessment of the Internet Protocol version 6 (IPv6) and related technologies (such as transition/co-existence mechanisms). The result of the aforementioned project is a series of documents that provide advice both to programmers implementing the IPv6 protocol suite and to network engineers and security administrators deploying or operating the protocols. Part of the results of the aforementioned project have been recently published, leading to a number of improvements in many IPv6 implementations. Fernando Gont will discuss the results of the aforementioned project, introducing the attendees to the "state of the art" in IPv6 security, and providing advice on how to deploy the IPv6 protocols securely. Gont will also discusss recent advances in IPv6 security areas such as Denial of Service attacks, firewall circumvention, and Network Reconnaissance, and will describe other IPv6 security areas in which further work is needed. Additionally, he will demonstrate the use of some attack/assessment tools that implement new network reconnaissance techniques or that exploit a number of vulnerabilities found in popular IPv6 implementations. The IPv6 protocol suite was designed to accommodate the present and future growth of the Internet, and is expected to be the successor of the original IPv4 protocol suite. It has already been deployed in a number of production environments, and many organizations have already scheduled or planned its deployment in the next few years. Additionally, a number of activities such as the World IPv6 Day in 2011 and the upcoming World IPv6 Launch Day (scheduled for June 2012) have led to an improvement in IPv6 awareness and an increase in the number of IPv6 deployments. There are a number of factors that make the IPv6 protocol suite interesting from a security standpoint. Firstly, being a new technology, technical personnel has much less confidence with the IPv6 protocols than with their IPv4 counterpart, and thus it is more likely that the security implications of the protocols be overlooked when the protocols are deployed. Secondly, IPv6 implementations are much less mature than their IPv4 counterparts, and thus it is very likely that a number of vulnerabilities will be discovered in them before their robustness matches that of the existing IPv4 implementations. Thirdly, security products such as firewalls and NIDS's (Network Intrusion Detection Systems) usually have less support for the IPv6 protocols than for their IPv4 counterparts, either in terms of features or in terms of performance. Fourthly, the security implications of IPv6 transition/co-existence technologies on existing IPv4 networks are usually overlooked, potentially enabling attackers to leverage these technologies to circumvent IPv4 security measures in unexpected ways.

uk: вхід без авторизації


Work on callout(9)

uk: Комп'ютерні науки

uk: вхід без авторизації


de: Chemie

fi: kemia

uk: Хімія

en: Chemistry

fr: Chimie

da: Kemi

es: Química

nl: Scheikunde

de: Mathematik, Naturwissenschaften

uk: Математика, природничі науки

en: Mathematics, Natural Sciences

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 14 and Lec 15. Organic Reaction Mechanism -- Alkali Organometallics (Part 3) & Addition of E+ to C=C Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lec 14. Alkali Organometallics (Pt. III) & Lec 15

University of California Irvine (UCI)

addressCountry: US

addressLocality: Irvine

addressRegion: California


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 11 and Lec 12. Organic Reaction Mechanism -- Eliminations (Part 2) & Addition to Pi Star (π*) Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lec. 11. Eliminations (Pt. II) & Lec. 12. Addition to Pi Star (π*)


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 15 and Lec 16. Organic Reaction Mechanism -- Addition of Electrophilic to C=C (Part 2) & C-C Bonds Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lec. 15. Electrophilic Addition of E+ to C=C (Pt. II) & Lec 16. Formation of Carbon-Carbon Bonds


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 14. Organic Reaction Mechanism -- Anions (Part 2) & Alkali Organometallics Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lec. 13. Anions (Pt. II) & Lec. 14. Alkali Organometallics


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 06. Organic Reaction Mechanism -- Carbocation Stabilization bt Vicinal Sigma Bonds Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lec. 06. Carbocation Stabilization by Vicinal Sigma Bonds.


Lecture 01. Arrow Pushing. Part 1.

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 01. Organic Reaction Mechanism -- Arrow Pushing -- Part 1 Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 02. Organic Reaction Mechanism -- Molecular Orbital Theory (Part 2) & Energy -- Part 1 Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

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name: Lecture 02. Molecular Orbital Theory (Pt. 2) & Energy.


Lecture 01. Arrow Pushing. Part 2

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 01. Organic Reaction Mechanism -- Arrow Pushing -- Part 2 Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 02. Organic Reaction Mechanism -- Molecular Orbital Theory -- Part 1 Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lecture 02. Molecular Orbital Theory (Pt. 1)


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 03. Organic Reaction Mechanism -- Molecular Orbital Theory (Part 3) & Energy -- Part 2 Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lecture 03. Molecular Orbital Theory (Pt. 3) & Energy Pt. 2


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 07 & Lec. 08. Organic Reaction Mechanism -- Neighboring Groups (Part 2) & Solvation Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

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name: Lecture 07. Neighboring Groups Pt. II & Lec. 8. Solvation


Lecture 04. Selectivity

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 04. Organic Reaction Mechanism -- Selectivity Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

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Lecture 05. Carbocations

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 05. Organic Reaction Mechanism -- Carbocations Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


Lecture 07. Neighboring Groups

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 07. Organic Reaction Mechanism -- Neighboring Groups Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


Lecture 09. Addition to Sigma Star (σ*)

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 09. Organic Reaction Mechanism -- Addition to Sigma Star (σ*) Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 09. Pt 2. Addition to Sigma Star (σ*)


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 12. Organic Reaction Mechanism -- Addition to Pi Star (π*) -- Part 2 Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

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name: Lecture 12. (Pt. II) Addition to Pi Star (π*)


Lecture 11. Eliminations

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 11. Organic Reaction Mechanism -- Eliminations Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 13. Organic Reaction Mechanism -- Addition to Pi Star (π*) - Part 3 Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lecture 13. (Pt. III) Addition to Pi Star (π*)


Lecture 14. Anions.

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 14. Organic Reaction Mechanism -- Anions Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


Lecture 15. Addition of E+ to C=C

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 15. Organic Reaction Mechanism -- Addition of Electrophilic to C=C Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 17. Organic Reaction Mechanism -- Enols, Enamines and Enolates CORRECTION AT 47m09s (as annotated) - "should be (E+N) IS GREATER THAN -5" Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lecture 17. Enols, Enamines, and Enolates


Lecture 19. Sulfur Chemistry

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 19. Organic Reaction Mechanism -- Sulfur Chemistry Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

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Lecture 20. Phosphorus Chemistry

uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 20. Organic Reaction Mechanism -- Phosphorus Chemistry Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 14. Organic Reaction Mechanism -- Alkali Organometallics -- Part 2 Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lecture 14. Alkali Organometallics (Pt. II)


uk: Математика, природничі науки

description: This is a graduate course in organic spectroscopy, focusing on modern methods used in structure determination of organic molecules. Topics include mass spectrometry; ultraviolet, chiroptical, infrared, and nuclear magnetic resonance spectroscopy.

uk: вхід без авторизації

name: Discussion 01. Monday, September 26. Molecular Modeling (Mechanics) using PyMOL


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 01. Infrared Spectroscopy: Introduction


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 02. C,H,O-Containing Functional Groups


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 03: Ring Size Conjugation, Electron-Withdrawing Groups


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 04. Mass Spectrometry: Theory, Instrumentation, and Techniques


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 05. Isotopic Masses, Isotopic Abundances, and High-Resolution Mass Spectrometry


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 06. Fragmentation in EIMS: Alkanes, Alkenes, Heteroatom Compounds, Carbonyl Compounds


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 07. Introduction to NMR Spectroscopy: Concepts and Theory, Part 1


uk: Математика, природничі науки

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name: Lecture 08. Introduction to NMR Spectroscopy: Concepts and Theory, Part 2


uk: Математика, природничі науки

description: This video is part of a 28-lecture graduate-level course titled "Organic Spectroscopy" taught at UC Irvine by Professor James S. Nowick. The course covers infrared (IR) spectroscopy, mass spectrometry, and nuclear magnetic resonance (NMR) spectroscopy, the latter of which is the main focus. Topics covered in the NMR spectroscopy part of the course include chemical shifts, spin-spin coupling, dynamic effects in NMR spectroscopy, and 2D NMR spectroscopy (COSY, HMQC, HMBC, TOCSY, NOESY, ROESY).

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name: Lecture 10. 13C NMR Chemical Shifts: Chemical Equivalence and Spin-Spin Coupling


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 11. Magnetic Equivalence, Spin Systems, and Pople Notation


uk: Математика, природничі науки

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name: Lecture 12. Coupling Analysis in First-Order and Near-First-Order Systems


uk: Математика, природничі науки

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name: Lecture 13. Coupling Analysis in First-Order and Near-First-Order Systems (continued)


uk: Математика, природничі науки

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name: Lecture 16. The Importance of 13C Chemical Shifts in Structure and Stereochemistry Determination


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 14. Spin-Spin Coupling in Stereochemistry and Structure Determination


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 18. Dynamic Effects in NMR Spectroscopy


uk: Математика, природничі науки

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name: Lecture 19. The Nuclear Overhauser Effect in Stereochemistry and Structure Determination


uk: Математика, природничі науки

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name: Lecture 20. Understanding Complex Pulse Sequences


uk: Математика, природничі науки

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name: Lecture 21. Using HMBC to Help Solve Structures: "Putting the Pieces Together"


uk: Математика, природничі науки

uk: вхід без авторизації

name: INADEQUATE. Some Thoughts on Homework Set 9


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 15. Coupling Involving Other Nuclei


uk: Математика, природничі науки

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name: Lecture 27. Using HMQC-TOCSY or HSQC-TOCSY to Deal with Overlap


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 17. Introduction to 2D NMR Spectroscopy


uk: Математика, природничі науки

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name: Lecture 22. Aspects of COSY, HMQC, HMBC, and Related Experiments


uk: Математика, природничі науки

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name: Lecture 23. Using TOCSY to Elucidate Spin Systems. ROESY


uk: Математика, природничі науки

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name: Lecture 24. Using Organic Spectroscopy to Solve Complex Structures


uk: Математика, природничі науки

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name: Lecture 26. Using Organic Spectroscopy to Solve Complex Structures, Part 2


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 9. Chemical Shift. 1H NMR Chemical Shifts


de: Physik, Astronomie

fi: fysiikka, tähtitiede

uk: Фізика, Астрономія

en: Physics, Astronomy

fr: Physique, Astronomie

da: Fysik, Astronomi

es: Física, Astronomía

nl: Natuurkunde, Astronomie

uk: Математика, природничі науки

@language: de

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name: Lise-Meitner-Lectures 2015: Material in neuem Licht - wie maßgeschneidertes Licht Materie strukturieren und anordnen kann

name: Deutsche Physikalische Gesellschaft (DPG)


uk: Фізика, Астрономія

uk: Математика, природничі науки

uk: вхід без авторизації

name: Lise-Meitner-Lectures 2016: Ein Interview mit Frau Prof. Dr. Petra Schwille


uk: Фізика, Астрономія

uk: Математика, природничі науки

description: Mit dieser jährlichen Veranstaltungsreihe von der Deutschen Physikalischen Gesellschaft (DPG) und der Österreichischen Physikalischen Gesellschaft (ÖPG) sollen herausragende Wissenschaftlerinnen aus Deutschland und Österreich, so genannte „Role Models“, einem breiten Publikum vorgestellt werden. Neben öffentlichen und allgemein verständlichen Vorträgen und einem jährlich stattfindenden Wettbewerb für Schülerinnen und Schüler sind Treffen mit Schülerinnen und Schülern sowie Diskussionen mit jungen Frauen, Studierenden und Nachwuchsforschern vorgesehen. Zudem werden in einer Poster-Ausstellung unter dem Titel „Lise Meitner und 'ihre Töchter': Physikerinnen stellen sich vor“ deutsche und österreicherische Role Models aus der Physik vorgestellt. Im Jahr 2016 hält Frau Prof. Dr. Petra Schwille vom Max-Planck-Institut für Biochemie in Martinsried die Lise-Meitner-Lecture zum Thema "Ist Leben konstruierbar?". Mit den Lise Meitner Lectures möchten wir verdeutlichen, dass die MINT-Fächer insgesamt einen bedeutenden Teil und Garant unserer Kultur in Gegenwart und Zukunft ausmachen. Dazu ist die DPG auch gemeinsam mit 40 weiteren Institutionen aus Wissenschaft und Wirtschaft Partner in dem durch das Bundesministerium für Bildung und Forschung (BMBF) initiierten MINT-Pakt (Mathematik, Informatik, Naturwissenschaft und Technik).

uk: вхід без авторизації

name: Lise-Meitner-Lectures 2016: Ist Leben konstruierbar?:


uk: Математика, природничі науки

uk: вхід без авторизації

name: Lecture 28. Some Other Useful NMR Techniques


uk: Математика, природничі науки

description: UCI Chem 201 Organic Reaction Mechanisms I (Fall 2012) Lec 09 Pt. 3 and Lec 10. Organic Reaction Mechanisms -- Addition to Sigma Star (σ*) & Migratory Displacements Instructor: David Van Vranken, Ph.D. Description: Advanced treatment of basic mechanistic principles of modern organic chemistry. Topics include molecular orbital theory, orbital symmetry control of organic reactions, aromaticity, carbonium ion chemistry, free radical chemistry, the chemistry of carbenes and carbanions, photochemistry, electrophilic substitutions, aromatic chemistry.

uk: вхід без авторизації

name: Lec 09. Pt. 3. & Lec. 10. Migratory Displacements


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:26 Physical Equilibrium 0:03:50 Balance of Competing Physical Processes 0:06:47 Phase Changes 0:09:20 Equilibrium Vapor Pressure 0:14:01 Vapore Pressure and Change in State 0:15:30 Boiling Point 0:18:11 Hating Curve 0:21:37 Phase Changes 0:22:13 Phase Diagram of Water 0:27:11 Phase Diagram of Carbon Dioxide 0:28:43 Pressure and Melting/Boiling Point 0:29:29 Phase Diagram 0:30:59 Quiz: Vapor Pressure vs Temperature 0:31:59 Molar Heat of Vaporization 0:37:08 Clausius-Clapeyron Equation 0:40:56 Vapore Pressure of Ethanol 0:52:04 Estimating Vapor Pressure 0:57:19 Delta H of Vaporization 1:05:44 Estimating Boiling Point

uk: вхід без авторизації

name: Lecture 10. Physical Equilibrium, Part I


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:01:26 Global Warming Theory 0:05:11 Why should we care? 0:18:56 Sun's Radiation Hitting Earth 0:20:34 Solar Terrestrial Radiation 0:23:09 What Makes a Gas a Greenhouse Gas 0:27:59 Sherry Rowland's Hand-Drawn Radiance Graph 0:31:32 Solar Radiation Hitting the Atmosphere 0:36:18 Sherry Rowland's Radiance Graph 0:37:38 What about the greenhouse gases & aerosols 0:41:06 Global Fossil-Fuel CO2 Annual Emissions 0:42:27 An Atlas of Pollution 0:43:42 Per Capita CO2 Emissions 0:44:05 Cumulative CO2 Emissions 0:45:31 Atmospheric CO2 at Mauna Loa Observatory 0:46:50 CO2, CH4, and Estimated Global Temperature 0:49:50 Paleoclimate Temperature Change 0:51:04 Temperature Change Consistent with Greenhouse Gases? 0:52:36 Increasing Melt Area on Greenland 0:54:12 Sea Ice Area 0:55:32 What Causes Sea Level Rise? 1:00:41 Myths or Spin 1:02:27 Infinity Pool Analogy 1:04:22 Fred Singer 1:05:02 Latest Global Temperature Data 1:06:13 Global Cooling 1:07:49 Ozone was the 80's AGW

uk: вхід без авторизації

name: Lecture 11. Global Warming: Why, When, and How


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:10 Solutions 0:02:21 Saturated Solution 0:04:06 Solution Interactions 0:05:17 "Like Dissolves Like" 0:08:03 The Cleansing Action of Soap 0:10:21 Solubility and Temperature 0:15:21 Temperature and Solubility 0:19:35 Pressure and Solubility of Gases 0:23:11 What Happens When Pressure is Released 0:29:37 Solubility of Gas in Liquid 0:32:41 Concentration of Units 0:39:47 Different Properties of Solutions 0:40:15 Measures of Composition 0:41:33 Molar Concentrations as Function of Temperature 0:42:27 Molality of Solute 0:46:49 Molality from Mole Fraction 0:50:59 MOlarity to Molality 0:57:41 Colligative Properties of Nonelectrolyte Solutions 1:05:19 Vapor Pressure vs Mole Fraction Graph 1:06:43 Vapor Pressure of Solutions 1:07:51 Raoult's Law 1:11:30 Boiling Point Elevation

uk: вхід без авторизації

name: Lecture 12. Physical Equilibrium, Part II


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:25 Boiling Point Elevation 0:10:08 Freezing Point Depression 0:16:43 Coligative Properties of Electrolyte Solutions 0:21:16 Molal Boiling Poin Elevation and Freezing Point Depression 0:22:03 Osmotic Pressure 0:34:50 How much Glucose...? 0:38:44 Reverse Osmosis 0:40:37 Raoult's Law Graph 0:51:20 What is the Vapor Pressure of a solution 0:56:23 Revised Vapor Pressure Question 1:00:24 What is the Mole Fractions of... 1:05:25 Colligative Properties of Nonelectrolyte Solutions 1:07:11 Vapor Pressure Lowering

uk: вхід без авторизації

name: Lecture 13. Physical Equilibrium, Pt. III.


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:20 Equilibrium 0:01:38 Chemical Equilibrium 0:02:56 Concentration over Time 0:06:56 Equilibrium Constant 0:12:48 Reaction Quotient 0:15:31 Law of Mass Action 0:20:31 Chemical Equilibrium 0:29:03 What are Equilibrium Concentrations

uk: вхід без авторизації

name: Lecture 14. Chemical Equilibrium, Part I


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:28 Reaction Quotient 0:02:25 Writing Equilibrium Constants 0:09:55 Equilibrium Concentrations for the Reaction 0:16:54 Equilibrium Constant Kp 0:20:58 Free Energy vs Progress of Reaction 0:22:36 Equilibrium Constant and Free Energy 0:23:56 Equilibrium 0:24:40 Reaction Quotient 0:28:47 Equilibria Involving Condensed Phases 0:29:43 Vapor Color Intensity 0:31:21 Consider the Following Equilibrium... 0:36:52 Adding Equilibrium Reactions 0:41:40 Writing Equilibrium Constants 0:43:10 Chemical Kinetics and Chemical Equilibrium 0:45:31 Summary of Concepts 0:46:44 Multiple Equilibria 0:47:03 Carbonic Acid Ionizes in Water 0:49:19 Dr. Hess Returns 0:54:11 Reverse Equation 1 and Multiply by Two 0:56:28 Methane and Water 0:59:12 Isomerization Equilibrium Constant

uk: вхід без авторизації

name: Lecture 15. Chemical Equilibrium, Part II


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:26 Calculating Equilibrium Concentrations 0:02:36 Equilibrium Vapor Pressure 0:08:37 At 1280 Degrees C the Equilibrium Constant... 0:18:37 Equilibrium Concentrations 0:24:31 Henn Le Chatelier 0:25:07 Le Chatelier's Principle 0:31:27 Equilibrium - Effects of P, V, T, n 0:36:16 Color Intensity by Doubling the Volume 0:37:13 Le Chatelier's Principle 0:38:02 Blood Poisoning 0:46:13 Color Intensity at Equilibrium 0:47:32 Ammonia Synthesis 0:48:51 Pressure after Re-equilibrium 0:55:17 Concentration Effects 0:56:04 Will the Equilibrium Concentrations... 0:57:02 Temperature Effects 0:58:18 Free Energy: Equilibrium 1:08:54 Delta G and K 1:09:36 Free Energy and Temperature

uk: вхід без авторизації

name: Lecture 16. Chemical Equilibrium, Part III


Lecture 17. Final Exam Review

uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:01:14 Le Chatelier's Principle Summary 0:09:14 Calculate K for the Reaction 0:13:12 Parameters to Use in K 0:15:28 Free Energy and the Reaction Quotient 0:18:04 Delta G and K at Equilibrium 0:19:28 Multiple Equilibria 0:23:25 Equilibrium Thermodyanimcs 0:29:56 What's up With Delta G 0:33:15 Standard Free energy and Reaction Quotient 0:47:58 K and Free Energy 0:52:29 Equilibrium Composition 0:57:11 Direction of Reaction 1:00:18 Adding a Catalyst

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uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:48:33 First to Measure Gases: Gay Lussac 0:50:24 Genealogy (Academic Heritage) 0:51:38 Stratospheric Chemistry 0:57:54 CFC 1:01:00 Cicerone and Stolarski (Catalytic Cycle) 1:05:26 What are the effects fo reduced stratospheric ozone? 1:06:45 DNA Mutation 1:07:49 Ozone Graph 1:09:40 Weather balloon Photos 1:10:14 Ozone Over McMurdo Station, Antartica 1:12:25 Polar Stratospheric Clouds 1:13:45 Concentration vs Time Graph 1:14:01 South Pole Photos

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name: Lecture 1. Intermolecular Forces Liquids & Solids, Part I


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:02:29 Phases 0:11:40 Intermolecular Forces: Van der Waals Forces 0:13:03 Intermolecular Forces: Picture 0:14:58 Intermolecular Forces vs Intramolecular Forces 0:18:30 Intermolecular Forces: Dipole-Dipole Forces 0:21:08 Electronegativity 0:25:42 Carbon Dioxide MOlecular Model 0:27:08 VSEPR 0:28:22 Intermolecular Forces: Ion-Dipole Forces 0:30:29 Sodium Ion-Dipole Example 0:32:56 Intermolecular Forces: Dispersion Forces 0:34:24 Induced Dipoles Interacting with each other 0:40:08 Lewis Dot Structure 0:44:54 Trend of Electronegativity 0:47:16 What Type(s) of Intermolecular Foces Exist 0:48:13 Disperion Example 0:49:48 Intermolecular Forces: Hydrogen Bond 0:54:15 Why Does Water have a Higher Bioiling Point 1:06:32 Dispersion Example 1:08:16 Melting Points Figure 1:10:25 Surface Tension 1:12:18 Properties of Liquids

uk: вхід без авторизації

name: Lecture 2. Intermolecular Forces Liquids & Solids, Part II


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics 0:00:07 Transition from Liquids to Solids 0:12:34 Adhesion and Cohesion: Liquid/Liquid Forces 0:13:33 Adhesion and Cohesion: Liquid/Substrate 0:17:56 Surface Tension 0:18:29 Viscosity 0:21:04 Water 0:43:20 Quiz: Phase of Water 0:49:35 Quiz: Pressure in Flask 0:51:31 Cloud Formation/Dew Point 1:04:52 The Atmosphere: Temp vs Altitude 1:05:51 Stratospheric Chemistry 1:08:39 Interioinic and Intermolecular Interactions

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name: Lecture 3. Intermolecular Forces Liquids & Solids, Part III


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:08 Solids 0:09:01 Crystalline Solids 0:10:10 Unit Cells 0:11:31 Three Types of Cubic Cells 0:13:58 Types of Cystalline Solids 0:16:00 Seven Types of Unit Cells 0:17:21 Atomic Solids: Metalic Crystals: Closest Packing 0:20:21 Atomic Solids: Hexagonal Close Packed Structure (HCP) and Cubic Close Packed (CCP) 0:22:53 Types of Crystals 0:24:09 Volume of Unit Cell 0:39:40 Avagadro's Number from Unit Cell 0:46:24 Covalent Crystals 0:47:07 Metalic Crystals 0:48:20 Crystalline vs Non-Crystalline Quartz 0:50:18 Space and Lattice Holes 0:52:13 Filling Space 1:08:18 Latice Holes

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name: Lecture 4. Intermolecular Forces Liquids & Solids, Part IV


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:25 The Three Laws of Thermodynamics 0:04:35 State Functions 0:07:27 Work Depends on How You Got There 0:08:09 Sytems 0:13:40 Work (W) 0:16:30 Internal Energy 0:18:47 Enthalpy (H) 0:22:15 Change in Pressure/Volume 0:28:31 First Law of Thermodynamics 0:30:20 Work and Energy for Gases 0:32:51 Constant Volume/Pressure 0:35:10 Quiz: Isothermal Expansion 0:36:57 Quiz: Isothermal Compressoin 0:38:17 Isothermal and Adiabatic Expansion/Compression 0:39:16 Quiz: Adiabatic Expansion 0:42:04 PV Work 0:47:09 Energy of Expansion 0:50:22 Reversible 0:55:56 Isothermal Reversible Expansion 1:03:52 Work/Heat Diagram 1:04:46 Reversible Path Delta U = 0 1:05:22 Pressure vs Volume Graph

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name: Lecture 5. The first Law of thermodynamics, Part I: The universe consists of a system and its surroundings


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; Stoichiometry; Thermochemistry; and thermodynamics. Index of Topics: 0:00:26 Internal Energy, Heat, and Work 0:05:35 Enthalpy 0:13:14 Thermochemical Equations 0:14:38 Heating Curve 0:21:48 Thermochemical Equations Example 0:37:54 Enthalpy and Energy Example 0:40:51 Heat Production 0:45:41 Heat Capacity 0:48:06 Quiz: Temperature Change 0:54:40 Specific Heat 0:58:22 How to Use Specific Heat 1:02:27 Hess's Law

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name: Lecture 6. Thermodynamics: First Law, Part II


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:14:17 Combustion of Benzene 0:21:13 Hess's Law Example 0:30:15 Bond Enthalpies 0:37:17 Quiz: Polymerization 0:40:41 Mean Bond Enthalpies 0:45:12 Heats of Solution 0:47:26 Solution Process for NaCl 0:48:49 Second and Third Law of Thermodynamics 0:49:37 Second Law 0:53:37 Metal Cube Cooling 0:54:23 Gas Filled Glas 0:55:33 Spontaneous Physical Chemical Process 0:57:03 Spontaneous vs Nonspontaneous 0:59:58 Entropy and Disorder 1:11:58 Statistical Entropy

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name: Lecture 7. Thermodynamics: Second & Third Law, Part I


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:00:27 The Second and Third Laws of Thermodynamics 0:01:24 Statistical Entropy 0:09:07 Distributio/Microstates 0:15:45 Quiz: Sorting Objects 0:20:04 Entropy Change 0:22:06 Entropy is a State Function 0:24:20 Standard Entropy Values 0:29:30 Third Law of Thermodynamics 0:33:03 Enropy Changes in System 0:38:36 Reverse/Irreversible Changes 0:40:19 Values of Rydberg Constant 0:43:38 Entropy Equations to Know 0:55:17 Change in entropy 1:06:25 Standard Entropy of Vaporizing Acetone 1:08:18 Standard Reaction Entropy

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name: Lecture 8. The second and third laws of thermodynamics, Part II


uk: Математика, природничі науки

description: UCI Chem 1B is the second quarter of General Chemistry and covers the following topics: properties of gases, liquids, solids; changes of state; properties of solutions; stoichiometry; thermochemistry; and thermodynamics. Index of Topics: 0:01:18 Spontaneous Process 0:04:12 Second Law of Thermodynamics 0:05:25 Gibbs Free Energy 0:22:07 Free Energy: Temperature 0:23:26 Quiz: Free Energy and Temperature 0:25:07 Quiz: Triple Point 0:26:19 Quiz: Spontaneous Reaction 0:28:23 Delta G and Delta S 0:37:52 Example: Combustion of Magnesium 0:40:55 Change in Entropy 0:46:31 Free Energy 0:52:14 Free Energy of Fromation 0:57:29 Estimate Entropy 1:01:51 Match Reaction to Delta G vs T 1:07:35 Free Energy and Reactions 1:08:38 Free Energy vs Temperature 1:11:10 Reduction of Iron (III)

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name: Lecture 9. The second and third laws of thermodynamics, Part III: How to tell if something is spontaneous


Lecture 01. Syllabus and Introduction.

uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -0:55 Syllabus -3:00 Textbook and Homework -5:45 Molecular Models -6:41 Facebook Group -10:59 Homework Assignment -11:49 Quizzes and Exams -19:24 Tutoring -21:12 What is Organic Chemistry? -25:51 Some Organic Chemicals -30:01 Three Major Concepts of O-Chem -36:43 Chapter 1 - Structure and Bonding -38:23 Covalent -40:25 Ionic Bonds -43:20 Polar Covalent Bonds -47:49 Electronegativity

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uk: Математика, природничі науки

description: This course covers topics such as bonding and structures, acids and bases, organic molecules and functional groups, alkanes, stereochemistry, organic reactions, alkyl halides and nucleophilic substitution, alkyl halides and elimination reactions, and other various topics. Index of Topics: -2:48 Trends in Electronegativity -7:25 Examples of Polarity -15:00 Lewis Structures -22:12 Dimethyl Sulfoxide -30:15 Formal Charges -35:58 Formal Charges and Dimethyl Sulfoxide -41:00 Resonance Structures -48:12 Benzene

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name: Lecture 02. Bond Polarity, Formal Charge, Lewis Structures


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:35 Skeletal Structures -9:57 Curved Arrow Notation -13:05 Curved Arrows and Benzene -19:39 Non-Equivalent Resonance Structures -26:36 Bond Lengths -46:52 Trifluoromethyl Cation Example

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name: Lecture 03. Resonance Structures, Skeletal Structures, Bond Length


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -0:55 Orbital-Based Models of Structure and Bonding -1:53 Molecular Orbitals -3:39 Orbitals of Molecular Hydrogen -10:36 Orbital Energy Diagram of Hydrogen -15:34 Hybrid Orbitals of Methane -22:09 Ethylene Orbitals -35:11 Acetylene Orbitals -39:39 Student Questions -43:20 Bond Strength

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name: Lecture 04. Orbital Models of Structure and Bonding


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:29 Molecular Geometry - Bond Angle -3:12 sp3 Geometries -8:39 sp2 Geometries -14:50 sp Geometries -22:26 Chapter 2 -27:15 Bronsted-Lowry Acids and Bases -36:58 Ammonium Example -42:19 Acidity

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name: Lecture 05. Molecular Geometry, Acids and Bases


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:13 Strong Acids -4:16 Weak Acids -8:08 Very Weak Acids -14:32 Position of Acid-Base Equilibria -15:38 Acid-Base Examples -24:34 Trends in pKa -30:42 Resonance Stabilization of Conjugate Bases -34:03 Inductive Stabilization of Conjugate Bases -37:18 S Character and Acid Strength -41:02 Equilibrium Constant of Acid-Base Equilibrium

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name: Lecture 06. Acid Strength and Equilibria


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:15 Lewis Acids and Bases -2:21 BF3 Example -8:49 NH4+ Example -12:41 Tert-Butyl Carbocation Example -19:15 Acid-Catalyzed Alkene Hydration -34:49 Acid-Catalyzed Alcohol Dehydration -37:26 Principal of Microscopic Reversibility -39:59 Tert-Butanol Example

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name: Lecture 07. Lewis Acids, Lewis Bases, and Organic Reaction Mechanisms


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:30 Functional Groups -4:27 Alcohols and Their Properties -14:27 Methanol and Its Properties -20:16 Butanol and Its Properties -21:54 Octanol and Its Properties -28:22 Hydrocarbons

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name: Lecture 08. Organic Compounds and Functional Groups


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:46 Aldehydes -6:43 Carboxylic Acids -9:12 Esters -16:05 Amides -24:28 Intermolecular Interactions -27:43 Van der Waals Interactions -34:55 Dipole - Dipole -40:47 Hydrogen Bonds -45:15 Solubility -49:56 Melting Point

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name: Lecture 09. Carbonyl Compounds, Intermolecular Forces


Lecture 10. Introduction to Alkanes

uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:58 General Formula of Alkanes -8:17 Properties of Certain Alkanes -15:09 Naming Alkanes Past Hexane -19:19 Isomers -23:28 Isomers of Butane, Pentane and Alkanes -31:49 Isopentane Example

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uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -3:00 Basics of Alkane Nomenclature -3:48 3-methylheptane Example -8:47 Alphabetization in Naming -15:15 Certain Substituent Names -21:18 Cycloalkanes -32:58 Conformation of Alkanes -36:00 Molecular Models -40:34 Newman Projections -47:16 Energy Diagram

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name: Lecture 11. Nomenclature of Alkanes, Conformations of Ethane


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:26 Conformations of Butane -4:08 Anti-Conformation -10:46 Steric Hinderance -19:52 Energy Levels of Different Conformations -22:06 Energy Diagram -27:45 Energy and Stability of Cyclopropane -35:46 Cyclobutane -37:06 Cyclopentane -39:58 Cyclohexane -49:28 Ring Flipping

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name: Lecture 12. Conformations of Butane and Cycloalkanes.


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:43 Chair Conformation -5:08 How to Draw a Chair -10:20 Cyclohexane Graphic and Computer Model -15:30 Methylcyclohexane Conformations -23:30 Steric Hinderance with Methylcyclohexane -31:07 Tert-Butylcyclohexane -34:05 1-tert-butyl-4-methylcyclohexane

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name: Lecture 13. Conformations of Cyclohexane


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:35 1,2-Dimethylcyclopropanes -7:43 Constitutional Isomers -8:43 Enantiomers -10:14 2-Butanol -16:24 Chirality of 2-Butanol -19:21 2-Propanol -22:36 Generalization of Chirality -25:04 2-Butanol -30:03 Diastereomers -33:42 Two Isomers of 1,2-Dimethylcyclopropane -42:07 Stereoisomers of 2-methyl-1-cyclopentanol

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name: Lecture 14. Introduction to Stereochemistry


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:13 Nomenclature of R and S -3:11 Tetrahedral Stereogenic Center -6:40 Priority Around Stereogenic Center -13:06 2-Butanol Example -25:05 Tetrahydropyran -31:09 Double Bonds and Triple Bonds -39:34 Triple Bond Example -42:47 Double Bond Example -45:16 Isotopes -47:04 Methylcyclopentanol

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name: Lecture 15. Assigning Tetrahedral Stereogenic Centers


Lecture 16. Meso Compounds

uk: Математика, природничі науки

description: UCI Chem 51A Organic Chemistry (Fall 2009) Instructor: James Nowick, Ph.D. Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:44 Meso Compounds -5:00 Cyclopentanediol Example -16:30 Mirror Plane -25:10 Tartaric Acid Example -32:41 Drawing Tartaric Acid -42:26 Different Variations of Tartaric Acid -44:12 Meso Plane

uk: вхід без авторизації


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -2:04 Optical Activity -6:10 Beer's Law -10:16 Racemic Compounds -16:36 Acid-Catalyzed Alkene Hydration -23:02 Carvone -26:16 Thalidomide -31:04 Physical Properties of Enantiomers, Racemates, and Achiral Compounds -43:06 Optical Purity and Enantiomeric Excess

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name: Lecture 17. Properties of Chiral Compounds


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -2:05 Topics -5:40 Writing a Reaction -10:51 Substitution Reaction -13:43 Arrows -14:49 Reaction Arrow -15:55 Equilibrium Arrow -18:39 Curved Arrows -23:03 Fishook Arrows -27:04 Double Headed Arrows -29:58 Addition Reactions -35:28 Elimination Reaction -39:44 Reactive Intermediates -40:45 Carbocations -41:50 Radicals -43:00 Carbanion -44:45 Examples of Reaction Mechanisms

uk: вхід без авторизації

name: Lecture 18. Introduction to Understanding Organic Reactions


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:32 Single Step Substitution Reaction Example -3:26 Multi-step Substitution Reaction Example -11:11 Energy Diagram for Single Step Reaction -17:13 Transition State -26:06 Energy Diagram for Multi-Step Reaction -30:01 Reverse Reaction of Multi-Step Reaction -34:46 Steps in the Multi-Step Reaction -41:34 Rates of Reaction -47:15 Other Factors Affecting Rate

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name: Lecture 19. Energy Diagrams, Transition States, and Reaction Rates


Lecture 20. Energetics of Reactions

uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:58 Energetics of Methane Substitution Reaction -8:53 Bond Dissociation Energy -16:24 Calculating Bond Dissociation Energy -17:51 Exothermic Reaction -22:24 Methane and Iodine Example -25:04 Endothermic Reaction -27:00 Free Energy and Equilibria -32:03 Ring Flip of Cyclohexane

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uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:31 Nomenclature of Alkyl Halides -4:43 1-Bromopentane Example -5:49 2-chloro-2-methylpropane Example -7:19 1-tert-butyl-4-iodocyclohexane Example -9:58 Types of Alkyl Halides -15:27 Chlorocyclohexane Example -17:19 Methyl Halide Example -19:09 Special Halides -26:55 Distinguishing Alkyl Halides -32:33 Nucleophilic Substitution Reactions -39:43 SN2 -44:52 SN1

uk: вхід без авторизації

name: Lecture 21. Introduction to Alkyl Halides and Nuceophilic Substitution.


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -3:03 Tert-Butyl Bromide Example -5:49 E2 Reaction -7:23 E2 Mechanism -14:50 Energy Diagram for E2 -17:27 Rate Law for E2 -20:13 E2 vs SN2 -27:03 Primary Halides -29:59 Steric Hindrance

uk: вхід без авторизації

name: Lecture 25. Elimination Reactions. Introduction to E2 Reactions


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:45 Stereochemistry in SN2 Reactions -10:08 3D Model -15:39 Charge Balancing -19:01 3-methylcyclopentane Example -22:40 Electrophiles -24:57 Great Electrophiles -30:40 sp2 and SN Reactions -31:32 Beta-Branching -34:03 Sodium Methoxide Examples -39:35 2 Prime Alkyl Halide -44:07 Common Nucleophiles -47:44 Factors Enhancing Nucleophilicity

uk: вхід без авторизації

name: Lecture 22. Mechanistic and Stereochemical Aspects of SN2 Reactions


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -2:07 Tertiary Bromide SN1 Example -9:35 Stereochemistry of SN1 Reactions -14:55 Carbocation Stereochemistry Example -22:21 Clarification -23:56 Kinetics of SN1 Reactions -26:42 Effect of Nucleophiles on Rate and Product -34:03 Energy Diagram

uk: вхід без авторизації

name: Lecture 23. Mechanistic and Stereochemical Aspects of SN1 Reactions


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:36 SN1 vs SN2 Reactions -5:11 Carbocation Stability -7:11 Hyperconjugation -14:28 Summary -18:48 Leaving Group -21:20 Good Electrophiles -27:59 Bad Electrophiles -37:30 Examples -41:55 Strength of Nucleophiles -47:50 Ranking Halide Electrophiles -49:17 Solvents

uk: вхід без авторизації

name: Lecture 24. Properties of Electrophiles, Leaving Groups, and Nucleophiles


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -0:50 Regiochemistry -1:32 2-bromobutene and NaOCH3 -3:42 Multiple Hydrogens -8:13 Zaitsev's Rule -12:37 Energy Diagram -18:33 Alkene Stereoisomers -27:54 Stereochemical Requirements for E2 Elimination -33:11 Stereoisomer Example -38:31 1,2-dibromo-1,2-diphenylethane Example -45:09 Newman Projections

uk: вхід без авторизації

name: Lecture 26. Regiochemical and Stereochemical Course of E2 Reactions.


uk: Математика, природничі науки

description: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -0:37 Tert-Butyl Bromide Example -7:34 E1 Elimination -15:18 Energy Diagram for E1 -21:29 Tert-butanol and H2SO4 E1 Reaction -29:37 How Will an Alkyl Halide React? -33:45 Primary Alkyl Halides -37:35 Ethylbromide Example -43:32 Secondary Alkyl Halides -47:31 Good Nucleophiles

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name: Lecture 27. E1 Reactions. Comparison of SN1, SN2, E1, and E2 Reactions


uk: Математика, природничі науки

description: This is the third (and final) quarter of the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: 01:51 - Designing Syntheses 10:17 - Some Famous Type 1 Carbonyl Compounds 12:23 - Physical Properties of Aldehydes & Ketones 15:24 - Reversible Addition Reactions of Aldehydes & Ketones 16:05 - Addition of Water (Hydration) 37:24 - Base Catalyzed Addition of Alcohols 41:11 - Acid Catalyzed Addition of Alcohols 43:54 - Step 1: Hemiacetal Formation 46:30 - Step 2: Acetal Formation

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name: Aldehydes & Ketones: Nucleophilic Substitution


Addition of Water, Alcohol & Cyanide

uk: Математика, природничі науки

description: This is the third (and final) quarter of the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: 00:25 - Addition of Alcohols 04:35 - Important Points about Acetal and Hemiacetal Formation 17:26 - Cyclic Acetals are formed more readily than Acyclic Acetals 21:30 - Addition of HCN 27:10 - Addition of Primary Amines (R-NH2) to give Imines 45:17 - Addition of Secondary Amines (R2NH) to give Enamines

uk: вхід без авторизації


Wittig Reaction

uk: Математика, природничі науки

description: This is the third (and final) quarter of the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: 00:23 - Summary of Addition Reactions of Aldehydes & Ketones 03:39 - Addition of a Phosphonium Ylide (Wittig Reaction) 18:14 - Retrosynthetic Analysis 25:13 - Addition of Weak Nucleophiles 35:00 - Synthesis Example 39:53 - Structure and Physical Properties of Carboxylic Acid Derivatives 47:47 - Some Famous Type 2 Carbonyl Compounds

uk: вхід без авторизації


uk: Математика, природничі науки

description: This is the third quarter course in the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -0:26 Office Hours -1:42 Textbook -4:57 Homework -13:22 Quizzes -15:21 Academic Honesty -16:52 Enrollment -17:05 Tutoring -18:02 Software -21:36 Carbonyl Chemistry -23:34 Amines, Sugars, and Selected Topics -25:08 Carboxylic Acids -32:52 Carbonyl Compounds -42:07 Some Properties of Carboxylic Acids -49:04 IR of Carboxylic Acids -55:31 NMR of Carboxylic Acids -59:55 Oxidation of Alcohols -1:03:22 Oxidation of Aromatic Compounds -1:05:55 Carboxylate Anions -1:08:54 pKa of Carboxylic Acids -1:13:06 Equilibria in Acid-Base Reaction -1:15:41 Inductive Stabilization of Conjugate Base

uk: вхід без авторизації

name: Lecture 01. Introduction to Carboxylic Acids.


uk: Математика, природничі науки

description: This is the third quarter course in the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -1:00 Reactivity with Nucleophilic -4:08 Resonance in a Carbonyl group -8:41 Nucleophiles and Carbonyls -18:09 LiAlH4 and NaBH4 -26:29 Example Reaction -32:38 Reduction -44:10 Hydride Reducing Agents -48:57 Sodium Hydride -54:02 Oxidation State -1:00:14 Reactivity Toward Nucleophiles -1:08:44 Making Racemic Mixtures -1:12:38 Chiral Hydride Reagent -1:16:05 Tert-Butyl Cyclohexanone Example

uk: вхід без авторизації

name: Lecture 02. Reactivity of Carbonyl Compounds.


uk: Математика, природничі науки

description: This is the third quarter course in the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: -3:09 Carboxylic Acids and LiAlH4 -9:07 DIBAL-H -14:59 Multiple Equivalents of Organometallic Reagents -18:18 Organocuprate Reagent -22:11 Chemoselectivity -26:14 Reducing Carbonyls and Alkenes -30:48 Oxidizing Agents -33:31 Regioselectivity -36:10 Resonance -40:00 Enones and Nucleophiles -41:45 Enolate Anion -44:15 Tautomerization -45:53 Protecting Groups -50:40 Taking the Protecting Groups Off -56:32 Synthesizing -1:05:33 Corrections

uk: вхід без авторизації

name: Lecture 04. Reactions and Protecting Groups.


uk: Математика, природничі науки

description: This is the third quarter course in the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: 1:08-Carbonyls and Strongly Basic Nucleophiles 4:01-Weakly Basic Nucleophiles 9:56-Naming Carbonyls 14:22-Properties of Ketones and Aldehydes 16:59-Reactivity 19:38-IR Spectroscopy 26:04-Conjugation 32:12-NMR 37:52-Synthesis of Aldehydes and Ketones 47:14-Reactions with Nucleophiles 54:25-Acetylene and Hydrogen Cyanide Examples 1:00:16-Workup of Cyanide Anion Addition 1:04:15-Wittig Reaction 1:09:44-Wittig Reaction Mechanism 1:16:24-Making a Wittig Reagent 1:18:14-Wittig Reaction Examples 1:20:11-Stereoselectivity

uk: вхід без авторизації

name: Lecture 05. Aldehydes and Ketones: Reactions.


uk: Математика, природничі науки

description: Index of Topics: 4:10-HCN Addition and Wittig Reaction 7:13-Ketones or Aldehydes and Amines 10:32-Aldimine Formation Example 15:23-Ketimine Formation Example 19:55-Mechanism of Acid-Catalyzed Imine Formation 33:28-Acid-Catalyzed Breakdown of the Hemiaminal 44:33-Answer to Student Question 47:50-Imine Formation 49:49-Reversibility 53:15-Example of Reversibility 55:50-Enanamines 59:04-Nucleophilicity of Amine 1:01:50-Imine Reaction with Base

uk: вхід без авторизації

name: Lecture 06. Formation of Imines & Enamines from Aldehydes & Ketones.


uk: Математика, природничі науки

description: This is the third quarter course in the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: 1:19-Electrophilicity of Aldehydes and Ketones 5:37-Hydrates 12:17-Acid-Catalyzed Addition of Water to Acetone 21:29-Acetone Enol Example 24:01-Reverse Reaction 25:31-Energy Diagram 29:28-Reverse Reaction Mechanism 36:38-Acid-Catalyzed Acetal Formation 40:00-Hemiacetal 43:01-Strong Acid 47:23-Hemiacetal Formation Mechanism 50:52-Hemiacetal to Acetal Mechanism 1:00:52-Acid-Catalyzed Acetal Hydrolysis 1:06:12-Protecting Groups 1:12:15-Cyclic Hemiacetal

uk: вхід без авторизації

name: Lecture 07. Acid-Catalyzed Formation of Hydrates, Hemiacetals, & Acetals.


uk: Математика, природничі науки

description: This is the third quarter course in the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: 2:00-Carboxylic Acid Derivatives 5:54-Nomenclature 17:44-Acid Chlorides and Anhydrides 22:28-Boiling Points of Esters Versus Alkanes 26:22-Resonance Structures 28:59-Properties of Amides 35:12-IR Spectroscopy 43:51-Reaction of Acid Chloride and Anhydride in Water 45:05-Reaction of Esters and Amides in Water 51:58-NMR of Carbonyls 54:51-Carboxylic Acid Derivatives and Nucleophiles 58:08-Weakly Basic Nucleophiles 1:00:49-Balanced Equation Example 1:05:19-Student Question 1:09:28-Acid Chloride Reaction Example 1:14:11-Relative Reactivity of Carboxylic Acid Derivatives 1:17:44-Anhydride Reaction

uk: вхід без авторизації

name: Lecture 08. The Chemistry of the Carboxylic Acid Family.


uk: Математика, природничі науки

description: This is the third quarter course in the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: 0:56-Esters and Carboxylic Acids Reactivity 9:29-Fischer Esterification 16:41-Fischer Esterification Mechanism 29:52-Hydrolysis of Esters 32:13-Saporification 37:27-Amides and Nitriles 53:36-Making Acid Chlorides 58:11-Making Amides 1:01:33-Nitriles and LiAlH4 and other Organometallic Reagents

uk: вхід без авторизації

name: Lecture 09. Reactions of Carboxylic Acids, Esters, Amides, & Nitriles.


Lecture 10. Enols and Enolates.

uk: Математика, природничі науки

description: This is the third quarter course in the organic chemistry series. Topics covered include: Fundamental concepts relating to carbon compounds with emphasis on structural theory and the nature of chemical bonding, stereochemistry, reaction mechanisms, and spectroscopic, physical, and chemical properties of the principal classes of carbon compounds. Index of Topics: 1:16-Reactivity of Ketones 3:02-Enols 6:36-Enolate Anion 9:47-Enolates and Electrophiles 16:49-Equilibrium Between Tautomers 23:07-Acid-Catalyzed Enol Formation 29:18-Energy Diagram 37:51-Multiple Additions 46:41-pKa of Alpha Protons 53:05-Base-Catalyzed Enol Formation 58:56-Stereochemistry 1:03:42-LDA 1:11:28-Kinetic Product vs Thermodynamic Product 1:17:56-LDA and Stereochemistry

uk: вхід без авторизації