[AMBER] the difference between proper torsion and improper torsion

From: Ming Huang <huangming.biomaps.rutgers.edu>
Date: Wed, 25 Sep 2013 11:43:02 -0400

Hi,

I have a simple question, what is the difference between proper torsion and
improper torsion.

I know, in mathematics, they may share the same formula and in chemistry,
torsion is used to describe the rotation along one bond.

Does torsion has some advantage in optimization, force field, compared to
improper torsion?

Many thanks,
Ming

-- 
Ming Huang
BioMAPS, Rutgers University
610 Taylor Road
Piscataway, New Jersey, 08854
Cell Phone: 612-208-7832
E-mail: huangming.biomaps.rutgers.edu <mingh.rci.rutgers.edu>
huangming6220.gmail.com
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Received on Wed Sep 25 2013 - 09:00:03 PDT