Bluffton University

Organic Chemistry

Molecular Models:
Structure and Nomenclature
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Alkynes contain carbon-carbon triple bonds. An important feature of alkynes is their rigid linearity; four atoms are held firmly in a straight line. Build ethyne (acetylene), propyne, 1-butyne and 2-butyne. Why is there no other triple-bonded isomer of butyne?
ethyne propyne 1-butyne 2-butyne
1-butyne 2-butyne
ethyne propyne 1-butyne 2-butyne

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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.