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Other Resources: 36 results
Nitric Oxide-Releasing Compounds  William F. Coleman, Randall J. Wildman
The five WebWare Molecules for December derive from the article Nitrogen-Based Diazeniumdiolates: Versatile Nitric Oxide-Releasing Compounds for Biomedical Research and Potential Clinical Applications by Joseph E. Saavedra and Larry K. Keefer.
Medicinal Chemistry
Prophine and Protoporphyrin  William F. Coleman, Randall J. Wildman
The WebWare molecules this month are from the article "Photochemotherapy: Light-Dependent Therapies in Medicine" by Edward P. Zovinka and Danielle R. Suneri. The first is a simple porphine, illustrating the ubiquitous four-nitrogen macrocycle, while the second is the protoporphyrin found in heme systems.
Medicinal Chemistry |
Photochemistry
Elements That Disintegrate  
Volume 03, issue 32 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Nuclear / Radiochemistry |
Medicinal Chemistry
Diluting and Mixing I.V. Solutions  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Solutions / Solvents |
Medicinal Chemistry
Foundations for Nuclear Medicine  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nuclear / Radiochemistry |
Medicinal Chemistry
Transmutation and Radioactivity in Nuclear Medicine  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nuclear / Radiochemistry |
Medicinal Chemistry
Acetaminophen, Aspirin, and Caffeine  William F. Coleman, Randall J. Wildman
The WebWare Molecules for February are from the article, "A General Chemical Laboratory Theme: Spectroscopic Analysis of Aspirin", by Houston Byrd and Stephen E. O'Donnell. In the article, students examine non-prescription medicines containing acetaminophen, aspirin, and caffeine.
Molecular Properties / Structure |
Medicinal Chemistry
The Chlorine Family  
Volume 03, issue 04 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Industrial Chemistry |
Consumer Chemistry |
Medicinal Chemistry
Chemistry in Biology  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Applications of Chemistry |
Biological Cells
Solution Concentrations and Cells  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Solutions / Solvents |
Biological Cells
Density of fat and muscle  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Biological Cells
Umami and Proteins  Robert Hetue
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Proteins / Peptides
ChemPaths 104 M Jan 31  John W. Moore
Today in Chem 104: * Lecture: Biochemistry: Proteins * Reading: Kotz: Chemistry of Life (pp. 496-502); Moore: Ch 3, Sec 11; Ch 12, Sec 7 * Biomolecules Tutorials o Proteins 1 (including debriefing) o Proteins 2 (including debriefing) o Quiz due W Feb. 2, 11:55 PM) * Homework #3 due by 11:55pm F Feb 4.
Proteins / Peptides
Polypeptide Chains  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Proteins / Peptides
Primary Protein Structure  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Proteins / Peptides
Secondary Protein Structure  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Proteins / Peptides
Higher-Order Structure  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Proteins / Peptides
Molecular Model of Zincon  William F. Coleman
The Featured Molecules this month are the tautomeric forms of the colorimetric reagent zincon, used in the paper by Maria Mar Areco, Maria dos Santos Afonso, and Erika Valdman on the bioabsorption of zinc, and by extension other metal ions, by seaweed. The structures presented have been calculated at the DFT/6-31G(d) level using the B3LYP functional. These structures represent energy minima, but not necessarily global minima. The structures could be used as an introduction to the concept of tautomerism, with students being asked to develop a definition of the term based on their observations of the difference(s) in linkage in the two forms. An intramolecular hydrogen bond is found in each structure, and introductory chemistry students could be encouraged to look for these structural features in molecules that are more complex than those typically encountered to introduce hydrogen bonding. More advanced students could use computational techniques to explore the energy differences between the two forms, and compare those differences to the ones observed between more traditional keto/enol examples.
Calorimetry / Thermochemistry |
Water / Water Chemistry |
Biological Cells
Molecular Models of Plant Hormones  William F. Coleman
The paper "Synthesis of Plant Auxin Derivatives and Their Effects on Ceratopteris richardii" by Corey E. Stilts and Roxanne Fisher describing an experiment begun in the organic labs and completed in a biochemistry cell biology lab provides the featured molecules for this month. The molecules in Figure 1 of that paper have been added to the collection. There is nothing particularly surprising about their structures, but students might be interested in seeing whether they can determine any structure/regulating effect relationships as the number of synthesized auxin derivatives grows. Additionally, students with little or no biochemistry background might wish to explore other systems that act as growth regulating hormones in plants, as an introduction to the variety of molecular structures that can display such bioactivity. Such molecules range from the very simple, ethene, to the adenine-derived cytokinins (an example of which, zealtin, is shown here) and the brassinosteroids. Brassinolide, a commonly occurring brassin, is also shown. These latter two structures have also been added to the molecule collection. All of the structures have been optimized at the HF/6-31G(d) level.
Synthesis |
Biological Cells |
Hormones |
Bioorganic Chemistry
Secondary Protein Structure with Cultural Connections  Garrett Schwarzman
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Proteins / Peptides |
Consumer Chemistry
ChemPaths 104 W Feb 2  John W. Moore
Today in Chem 104: * Lecture: Biochemistry: Proteins * Reading: Biomolecules Tutorials o Proteins 1 (including debriefing) o Proteins 2 (including debriefing) o Quiz due TODAY, 11:55 PM) * Homework #3 due by 11:55pm F Feb 4.
Proteins / Peptides |
Amino Acids
Proteins  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Proteins / Peptides |
Enzymes
The World's Food Supply  
Volume 04, issue 05 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Proteins / Peptides |
Carbohydrates |
Lipids |
Nutrition
The World's Food Supply  
Volume 05, issue 10 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Proteins / Peptides |
Carbohydrates |
Lipids |
Nutrition
Limiting Reagent Protein Nutrition  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Stoichiometry |
Proteins / Peptides |
Amino Acids
Anthropology and Protein Stoichiometry  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Stoichiometry |
Proteins / Peptides |
Amino Acids
Nutrition  American Chemical Society
ACS Science for Kids activities that explore the chemical properties of food and nutrition.
Lipids |
Physical Properties |
Proteins / Peptides |
Nutrition |
Carbohydrates
Biomolecules (Netorials)  Rachel Bain, Mithra Biekmohamadi, Liana Lamont, Mike Miller, Rebecca Ottosen, John Todd, and David Shaw
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.
Bioorganic Chemistry |
Carbohydrates |
Nucleic Acids / DNA / RNA |
Lipids |
Proteins / Peptides
The World's Food Supply  
Volume 03, issue 09 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Plant Chemistry |
Photosynthesis |
Proteins / Peptides |
Carbohydrates |
Lipids |
Nutrition
Your Body  American Chemical Society
ACS Science for Kids activities explore the chemistry of the human body.
Bioenergetics |
Applications of Chemistry |
Nutrition |
Lipids |
Proteins / Peptides |
Carbohydrates |
Food Science
Collection of Chiral Drug, Pesticide, and Fragrance Molecular Models  William F. Coleman
The article by Mannschreck, Kiessewetter, and von Angerer on the differential interactions between enantiomers and biological receptors (1) is the source for this month's Featured Molecules. Included in the molecule collection are all of the molecules described in the paper. In many instances we have included structures of multiple optical isomers of the same molecule so that students can not only see the forms that are active, but those that are less active, inactive, or act in an undesirable manner. These molecules will serve as good practice in determining optical configurations, and will also introduce additional forms of isomerism that students may be less familiar with than they are with R and S. Since multiple enantiomers and diastereomers are provided, students may use these molecules, together with an appropriate computational package, to verify that enantiomers have the same energy while diastereomers do not. The tuberculosis drug ethambutol provides an interesting case as both nitrogen atoms are also chiral as well as the two chiral carbon atoms. A calculation on a given structure will include the effect of that nitrogen chirality, although nitrogen inversion is expected to be quite rapid in this molecule. The conformations for the ethambutol molecules that are included here consider all four chiral atoms and are of the form (CNNC). A reasonable computational exercise would be to find the transition state for nitrogen inversion and the barrier height for that process. The supplemental material that is included with the featured article (1) includes a number of molecules that we will add to the collection as time permits. The result, including enantiomers and diastereomers, will be well over 200 additional molecules. A notice will appear in the JCE Featured Molecules column when this new set of molecules is available in JCE Online.
Chirality / Optical Activity |
Biosignaling
The Heisenberg Uncertainty Principle and Electronic Synapses  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Quantum Chemistry |
Biosignaling
Mage; A Tool for Developing Interactive Instructional Graphics  Stephen F. Pavkovic
Mage is a graphics program especially well suited for visualizing three-dimensional structures of proteins and other macromolecules. It is an important tool for biochemists and finds many applications in biochemistry courses. We utilize Mage to create interactive instructional graphics of potential use in a wider range of undergraduate chemistry courses, and present some of those applications here.
Crystals / Crystallography |
Group Theory / Symmetry |
VSEPR Theory |
Molecular Properties / Structure |
Stereochemistry |
Proteins / Peptides
Netorials  
The Netorials cover selected topics in first-year chemistry including: Chemical Reactions, Stoichiometry, Intermolecular Forces, Acids & Bases, Biomolecules, and Electrochemistry.
Acids / Bases |
Stoichiometry |
Proteins / Peptides |
Enzymes |
Carbohydrates |
Nucleic Acids / DNA / RNA |
Lipids |
Oxidation / Reduction |
Noncovalent Interactions
Food  American Chemical Society
ACS Science for Kids activities that explore the chemical properties of foods.
Plant Chemistry |
Dyes / Pigments |
Lipids |
Proteins / Peptides |
Carbohydrates |
Molecular Properties / Structure |
Applications of Chemistry |
Nutrition |
Acids / Bases |
Chromatography
Characteristics of Materials  American Chemical Society
What makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.
Industrial Chemistry |
Physical Properties |
Reactions |
Consumer Chemistry |
Gases |
Carbohydrates |
Proteins / Peptides |
Crystals / Crystallography |
Water / Water Chemistry |
Plant Chemistry |
Dyes / Pigments |
Lipids |
Molecular Properties / Structure |
Applications of Chemistry |
Nutrition |
Acids / Bases |
Chromatography |
Magnetic Properties |
Metals |
Polymerization |
Solutions / Solvents |
Descriptive Chemistry |
Food Science