TIGER

Other Resources: 63 results
Stereochemistry Tutorial  Nicola Burrmann
Master the concepts organic stereochemistry with this interactive tutorial. It includes definitions, different three dimensional representations, assigning priorities to stereocenters, and determining the stereochemical relationship between molecules. Each section is followed by a question set that tests knowledge and understanding.
Stereochemistry |
Chirality / Optical Activity
Properties of Alkanes  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Chirality / Optical Activity
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 Amino Acids  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Amino Acids |
Chirality / Optical Activity
The Molar Mass  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Stoichiometry
Measurement of Pressure  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Avogadro's Law  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Charles's Law  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Gases
The Chemical Name Game  Robert M. Hanson
Provides practice in learning about names and properties of chemical species. You can play this game by yourself or as a group with a moderator to work the mouse and check answers.
Nomenclature / Units / Symbols
What's in a Name  Robert M. Hanson
Focuses on the reasons for learning the names of compounds and ions that by learning the names we are learning information that is immediately helpful in identifying what is going on in an aqueous solution.
Nomenclature / Units / Symbols
Acronyms  Hans J. Reich
About 150 common acronyms are listed along with their full names and structures.
Nomenclature / Units / Symbols
Named Reactions  Michael B. Smith
This Web site lists 95 of the most important named reactions in organic chemistry. Each is linked to a Web page that gives the primary reference and equations for one or more recent literature examples that illustrate the use of the reaction.
Nomenclature / Units / Symbols |
Reactions
Named Reagents  Hans J. Reich
This convenient list provides structures of more than 160 common reagents used in organic chemistry that are often referred to by the originator's name, by an acronym, or by a trade name.
Nomenclature / Units / Symbols |
Reactions
Named Rules and Effects  Hans J. Reich
Concise descriptions and structures of a number of named effects, rules, stereochemical models and hypotheses' from Baldwin's rules to the Zimmerman-Traxler transition state are given.
Nomenclature / Units / Symbols
Class Names  Gerard P. Moss
International Union of Pure and Applied Chemistry documents describing the nomenclature of organic compounds.
Nomenclature / Units / Symbols
Bioinorganic Terms  Gerard P. Moss
International Union of Pure and Applied Chemistry documents describing the nomenclature of organic compounds.
Nomenclature / Units / Symbols
Heterocycles  Gerard P. Moss
International Union of Pure and Applied Chemistry documents describing the nomenclature of organic compounds.
Nomenclature / Units / Symbols
Steroids  Gerard P. Moss
International Union of Pure and Applied Chemistry documents describing the nomenclature of organic compounds.
Nomenclature / Units / Symbols
Stereochemistry  Gerard P. Moss
International Union of Pure and Applied Chemistry documents describing the nomenclature of organic compounds.
Nomenclature / Units / Symbols
Physical Organic Terms  IUPAC
International Union of Pure and Applied Chemistry documents describing the nomenclature of physical organic compounds.
Nomenclature / Units / Symbols
Bordwell pKa Values in DMSO  F. Bordwell
The late F. Bordwell of Northwestern University measured the pKa values of thousands of organic compounds. This Web site makes some of the data he measured conveniently available to the chemical community, and provides literature references to the published data (the Web site also includes much unpublished data).
Nomenclature / Units / Symbols
Organic Compounds  IUPAC
International Union of Pure and Applied Chemistry documents describing the nomenclature of organic compounds.
Nomenclature / Units / Symbols
Reactive intermediates  Hans J. Reich
Reactions of organic compounds involving reactive intermediates.
Nomenclature / Units / Symbols
Proton Chemical Shifts  Hans J. Reich
NMR Spectroscopy
Nomenclature / Units / Symbols
Carbon-13 Chemical Shifts  Hans J. Reich
NMR Spectroscopy
Nomenclature / Units / Symbols
Aqueous pKa Values  William P. Jencks, Frank H. Westheimer
pKa Values: This list was originally collected by W. P. Jencks and F. H. Westheimer and compiled by R. Williams.
Nomenclature / Units / Symbols
Carbohydrates  Gerard P. Moss
International Union of Pure and Applied Chemistry documents describing the nomenclature of organic compounds.
Nomenclature / Units / Symbols
Inorganic Nomenclature  Laura Yindra, David Shaw
Inorganic Nomenclature is a drill-and-practice tutorial on naming simple inorganic compounds and writing chemical formulas consisting of multiple-choice questions.
Nomenclature / Units / Symbols
Organic Nomenclature  Laura Yindra, David Shaw
Organic Nomenclature is a drill-and-practice tutorial on naming simple organic compounds and drawing structures consisting of multiple-choice questions.
Nomenclature / Units / Symbols
Measurements, Quantities, and Unity Factors Lecture Demonstrations  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Errors in Measurement Lecture Demonstrations  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
The Number of I Atoms in the iodine RDA  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Nutrition
Thermodynamic Terms and Conventions  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Thermodynamics |
Nomenclature / Units / Symbols
Standard Pressure  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Cell Notation and Conventions  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Organic Compounds-Some Additional Classes  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
The International System of Units (SI)  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Specific Gravity of Minerals  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Geochemistry |
Nomenclature / Units / Symbols
Density of Black Holes and Atomic Nuclei  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Astrochemistry |
Nomenclature / Units / Symbols
International Cookbooks and Ingredient Mass vs. Volume  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Nutrition
Bowling Balls  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Gold Thievery  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Conversion Factors and Functions Lecture Demonstrations  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
The Composition of Iodine Nutrient Supplement CuI  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Nutrition
How Many Atoms in the RDA of Iodine  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Nutrition
The 100 m sprint  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Bioenergetics
Energy of Bird Flight  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Bioenergetics
Energy with Cultural Connections  Garrett Schwarzman
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
SI Prefixes  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Volume  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Conversion Factors and Functions  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols
Units of Radiation Dose  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Nuclear / Radiochemistry
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
Archimedes Eureka!  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Physical Properties
Aerogels and Other Insulators  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Materials Science
What's in a Name (2)  William F. Coleman
A set of Web-based flash cards, either ordered or randomized, for reviewing General Chemistry nomenclature.
Nomenclature / Units / Symbols |
Enrichment / Review Materials
Werner and Jørgensen Bond Theory  David M. Whisnant, Laura Yindra
This simulation begins in the period around 1870 when chemistry is beginning to be organized. The concept, introduced by Kekulé and Couper, of tetravalent carbon atoms capable of linking to each other has permitted the rise of structural concepts in organic chemistry.
Nomenclature / Units / Symbols |
Valence Bond Theory
The Evolution of Bond Theory  David M. Whisnant, Laura Yindra
In chemistry lectures we have little time to discuss the history of chemistry. This simulation begins with the development of valence concepts in the 19th century. We will step back into the 19th century to see how theories of chemical combination changed during that time.
Nomenclature / Units / Symbols |
Valence Bond Theory
Number of Atoms in a drop of Water; Moles  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Water / Water Chemistry
Moles; the Number of Water molecules  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Water / Water Chemistry
Amount of Water  Ed Vitz
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Nomenclature / Units / Symbols |
Water / Water Chemistry
Elementary Bingo  Robert M. Hanson, Ira M. Hanson
Elementary Bingo is a simple Web page that creates Bingo cards for a classroom or social event activity associated with review and/or learning of the names and symbols of the elements. The essential element of the site is that every time the page is reloaded or printed, a unique set of Bingo cards is produced. As in ordinary Bingo, players receive Bingo cards that have chemical symbols. An announcer picks elements out of a hat (or beaker) and announces a chemical name. Players place markers on the symbol for that element if they have it on their card. Once a player has five across, five down, or five diagonally, they announce, "Bingo!" Their card is checked to see if, indeed, they do have the announced elements present.
Nomenclature / Units / Symbols |
Periodicity / Periodic Table |
Enrichment / Review Materials
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