Bluffton University

Organic Chemistry

Molecular Models:
Structure and Nomenclature
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You probably noticed that, while we built 1-butene and 2-methylpropene, we left out one of the isomers of C4H8. 2-butene can be represented in several ways:
None of these ways indicates any particular geometry; the squiggly line in the third drawing makes that explicit. However, if you build a model of 2-butene you will quickly notice that there are two possible geometries.


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Copyright © 1998, 1999, 2000, 2003, 2007 by Daniel J. Berger. This work may be copied without limit if its use is to be for non-profit educational purposes. Such copies may be by any method, present or future. The author requests only that this statement accompany all such copies. All rights to publication for profit are retained by the author.