From lim@rani.chem.yale.edu  Tue Feb 21 04:51:40 1995
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From: Dongchul Lim <lim@rani.chem.yale.edu>
Message-Id: <9502210908.AA23358@rani.chem.yale.edu>
Subject: conformational isomers
To: chemistry@ccl.net (Computational Chemistry)
Date: Tue, 21 Feb 95 4:08:12 EST
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Is there a simple way of testing if two given conformational isomers
are equivalent?
E.g., how can you know the gauche (+) conformer of n-butane is
equivalent to the gauche (-) conformer?
My idea is
1) superimpose the two conformers.
2) if they are not superimposed, superimpose the one conformer
   and the mirror image of the other.

Any ideas?
-D.L.