AMBER Archive (2006)

Subject: Re: AMBER: Umbrella sampling

From: David A. Case (
Date: Fri Apr 07 2006 - 15:56:48 CDT

On Fri, Apr 07, 2006, wrote:

> in teh exemple reported on the Amber8 manual (pag 138) in which units is
> reported the force constant?

The force constant is twice rk2, which is in units of kcal/mol-radian.

See the expanded explanation on p. 159 of the Amber 9 Users' manual (available


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