chemistry
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Josiah Willard Gibbs - Wikipedia, the free encyclopedia
Josiah Willard Gibbs (February 11, 1839 – April 28, 1903) was an American scientist who made important theoretical contributions to physics, chemistry, and mathematics. His work on the applications of thermodynamics was instrumental in transforming physical chemistry into a rigorous deductive science. Together with James Clerk Maxwell and Ludwig Boltzmann , he created statistical mechanics (a term which he coined), explaining the laws of thermodynamics in terms of the statistical properties of large ensembles of particles.
Organic Chemistry Links
http://www.organicworldwide.net/ (The literature of organic synthesis; excellent site which lists important reviews (downloadable!), mongraphs and famous textbooks) http://www.phc.vcu.edu/coolsites/link/organiclinks.html (This web page is a short collection of several web sites which cover organic synthesis, name reactions, organometallics etc., A nice way to begin) http://biochemhub.com/biochem/biochemhub.cfm (The Online Biology and Chemistry Education Center-- Includes lots of guides, tools, and links. A top-class web page)Mol4D Web Organic Chemistry
Een groot aantal onderwerpen uit het organisch chemische curriculum, te gebruiken naast een tekstboek. Ga naar dit menu! Deze tutorials voegen een 3D aspect toe aan de moleculaire modellen, en zelfs een 4D aspect als we animaties beschouwen (tijd is de extra dimensie).
VirtualText of Organic Chemistry
Organic chemistry is most commonly and simply defined as the chemistry of carbon compounds . Compared with hydrogen and helium, carbon is not an abundant element in the universe, nor in the solar system; but it is an essential element of life. Indeed, four elements: carbon, hydrogen, nitrogen and oxygen make up most of the matter found in living organisms. Trace elements such as sulfur, phosphorous, sodium, potassium and iron, to name a few, also play an important role in the chemistry of life; but it is the unique properties of carbon that permits the immense diversity of compounds associated with life.
Table of Contents
The practice problems provided as part of this text are chiefly interactive, and should provide a useful assessment of the reader's understanding at various stages in the development of the subject. Some of these problems make use of a Molecular Editor drawing application created by Peter.Ertl. To practice using this editor Click Here . Since problem solving is essential to achieving an effective mastery of the subject, it is recommended that many more problems be worked. Most organic chemistry textbooks contain a broad assortment of suitable problems, and paperback collections of practice problems are also available. In addition, a large collection of multiple choice problems may be viewed Here .Welcome to ChemWeb
ChemWeb members now have access to selected full text articles from Chemistry publishers such as Wiley, Elsevier and Springer. Members can download a selection of articles covering a broad range of topics direct from the pages of some of the most respected journals in chemistry. Explore some of the latest research or highly cited articles. If you are not a ChemWeb member, take just a minute to register for your free membership now . Journal Abstracts from chemistry publishers such as Bentham, Elsevier, Springer and others covering over 500 journals can be searched and accessed for free. Search by title and issue or use Journal Search for full-text search of abstracts across all journals.
NMR Knowledge Base - The NMR Resource
FREE Webinar from AB SCIEX Application of LC-Tandem Mass Spectrometry in Clinical Research Applications During this presentation the basic principles of operation of the two most commonly used LC- Tandem Mass Spectrometry technologies, triple quadrupole and hybrid-triple quadrupole (QTRAP®) systems, will be discussed in terms how they are used to quantitate and /or confirm the identity of clinically relevant compounds in the clinical research laboratory. Examples will include the analysis of immunosuppressant and psychoactive drugs as well as endogenous molecules such as vitamins, amino acids and steroid hormones.Organic Chemistry Portal
The Organic Chemistry Portal offers an overview of recent topics, interesting reactions, and information on important chemicals for organic chemists.
Portal:Chemistry - Wikipedia, the free encyclopedia
Enzymes are proteins that accelerate, or catalyze , chemical reactions . In these reactions, the molecules at the beginning of the process are called substrates , and the enzyme converts these into different molecules, the products. Almost all processes in the cell need enzymes in order to occur at significant rates. Since enzymes are extremely selective for their substrates and speed up only a few reactions from among many possibilities, the set of enzymes made in a cell determines which metabolic pathways occur in that cell. Enzymes are known to catalyze about 4,000 reactions. However, not all biological catalysts are proteins, since some RNA molecules called ribozymes can also catalyze reactions.Chemistry - Links for Chemists - Topics - Biographies
Unless otherwise stated, the biographies listed below are provided and listed with the kind permission of the The Nobel Foundation . If you know of any biographies of Chemists or scientists whose work has advanced chemistry, that we do not list, please inform us via our comments form .
Chemistry Central blog
Among the most popular papers published last month is a research article from Journal of Cheminformatics co-Editor-in-Chief Christoph Steinbeck and colleagues. The paper analyzes the different categories of structural classes in chemistry, presenting a list of patterns for features found in class definitions, and goes on to compare these patterns to tools which allow for automation of hierarchy construction within cheminformatics and within logic-based ontology technology. Also popular was an article from Mark Bagley and colleagues published as part of the Chemistry of Ageing issue in Chemistry Central Journal , which describes the microwave-assisted synthesis of a series of hydrazinyl thiazolyl coumarins. Several of the compounds displayed significant radical-scavenging ability, making them promising leads for further development and optimization.On May 1, 2011 I presented " Accelerating Discovery by Sharing: a case for Open Notebook Science " at the National Breast Cancer Coalition Annual Advocacy Conference in Arlington, VA. This was the first year where they had a session on an Open Science related theme and the organizers invited me to highlight some of the tools and practices in chemistry which might be applicable to cancer research. I was really touched by the passion from those in the audience as well as the other speakers and conference participants I met afterward. For many, their deep connection with the cause was strongly rooted in a personal experience as breast cancer survivors themselves or their loved ones.
Useful Chemistry
practical chem.
The ChemCollective is a collection of virtual labs , scenario-based learning activities , tutorials , and concept tests . Teachers can use our content for pre-labs, for alternatives to textbook homework, and for in-class activities for individuals or teams. Students can review and learn chemistry concepts using our virtual labs, simulations, and tutorials.
I've grabed a pearltree on chemistry ressources, you may want to have a look to complement yours: http://pear.ly/vLNz (in my science pearltree) by leclercfl Jan 21