11 Results
The Elements of Life   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Molecular Model of Tubocurarine   
(Interactive Simulation (1))
Curare, the Karib name for the plant from which this molecule is derived, is used in traditional South American medicine and hunting because it is a muscle relaxant. The three papers by Brunsvold and Ostercamp (1, 2, 3) provide us with an abundance of candidates for Featured Molecules this month. All of the major compounds highlighted in the papers, and many of the intermediates in the synthetic schemes, have been added to our collection. Students should note the structural similarities of the various barbiturate species and of the steroid-based compounds, as well as the interesting proto-cage structure of curare. Careful examination of the conformation of the alkyl groups in various of the molecules, when looked at as Newman projections, should convince students that their expectations about staggering substituents on adjacent tetrahedral-like carbon atoms are met in the computations. However, they should also be aware that recent work casts some doubt on the traditional explanation for that staggering (1). Charged species are presented in the collection in ionic form, without counterions (those are given in the papers), and all species except curare and atricurium besylate (molecule 40 in the third paper) were optimized at either HF/631-G(d) or B3LYP/631-G(d). The latter two molecules were optimized using HF/STO-3.
The Chemistry of Coffee   
(Interactive Simulation (1))
The paper Our Everyday Cup of Coffee: The Chemistry behind Its Magic by Marino Petracco provides a hearty blend of molecules for this month. The author deals with coffee at a number of different levels ranging from the economic and social to the still perplexing questions of flavor and aroma. The associated molecules demonstrate a range of structural features that students will benefit from examining in three dimensions.
Biomolecules (Netorials)   
(Instructional Material (1))
Biomolecules: this is a resource in the collection "Netorials". This set of modules will provide you with a descriptive overview of the four major classes of biomolecules found in all living organisms: carbohydrates, lipids, proteins, and nucleic acids. The Netorials cover selected topics in first-year chemistry including: Chemical Reactions, Stoichiometry, Thermodynamics, Intermolecular Forces, Acids & Bases, Biomolecules, and Electrochemistry.
Carbon and Its Organic Compounds   
(Article (36))
Volume 05, issue 13 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Organic Compounds of Carbon   
(Article (34))
Volume 04, issue 13 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Carbon Compounds   
(Article (34))
Volume 03, issue 13 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Ketosis in Biology   
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A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Properties of Organic Compounds and Other Covalent Substances in Astronomy   
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A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Earth's Oldest Fossils   
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A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
ChemPaths 104 M Feb 14   
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Today in Chem 104: * Lecture: Review for Exam I (email questions or topics for discussion during the review session to Prof. Moore by 9am today) * No assigned reading for today. * Exam I on Wednesday Feb 16: Covers material through Feb 11; Biomolecules tutorials, Molecular Structure, Aspirin, and Biodiesel Labs.