This site provides thermochemical, thermophysical, and ion energetics
data compiled by The National Institute of Standards and Technology (NIST) under the Standard Reference Data Program.
Find data on chemical species by Formula Search, Chemical Name Search, CAS Registry Number Search, Ionization Energy Search, Electron Affinity Search, Proton Affinity Search, Acidity Search, Appearance Energy Product Search, Vibrational Energy Search, Electronic Energy Level Search, Applet Based Structure Search, File Based Structure Search, Structure Class Search, Molecular Weight Search, Reaction Search, Author Search and other indirect searches.
This site includes tutorials on Organic Chemistry, mechanisms of Organic Chemistry, practice tests and laboratory help. Learn all about Comparing acidities of organic molecules by structure, Drawing alkane isomers given a molecular formula, Determining degrees of unsaturation from a structure or formula, Calculating formal charges on atoms, Naming bicyclic alkanes, Naming alkanes, Assigning R & S stereochemistry to chiral centers, Seeing electronegativity effects, Free Radical Halogenation, SN2 Reaction: Bimolecular Subsitution, SN1 Reaction: Unimolecular Substitution, E1: First Order Elimination, E2: Second Order Elimination, Electrophilic
Addition to Alkenes, Hydroboration of Alkenes, Nucleophilic Addition to Carbonyl Groups, Alcohol Dehydration, Fischer Esterification, Williamson Ether Synthesis, Friedel-Crafts Alkylation, Claisen Condensation, Baeyer-Villager Oxidation and Diels-Alder Reaction.