Classes of Isomers
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Isomers are compounds with the same chemical composition but with different structures. There are two categories: structural isomers and stereoisomers. Structural isomerism is exemplified by the molecules (ethylmethylether) and (1- and 2-propanol). Examples of stereoisomerism are the cis and trans modifications of specific groups of atoms within a molecule, for example (1,2-dichloroethene). Another type known as enantiomers are two stereoisomers that are mirror images of each other, which occurs in different forms of (glucose).
Contributed by: Enrique Zeleny (December 2011)
Open content licensed under CC BY-NC-SA
 Wikipedia. "Isomer." (Nov 23, 2011) en.wikipedia.org/wiki/Isomer.
"Classes of Isomers"
Wolfram Demonstrations Project
Published: December 15 2011