AMBER Archive (2002)

Subject: Re: antechamber

From: David Case (case_at_scripps.edu)
Date: Wed May 22 2002 - 10:03:50 CDT


On Wed, May 22, 2002, Giulio Rastelli wrote:

> when processing a pdb file with antechamber, trying to calculate
> AM1-BCC charges, the formal charge of the molecule is always set to
> zero. Therefore, for charged molecules, AM1 will have a singly
> occupied orbital.

You need to set the "-nc" (net molecular charge) flag in antechamber, to
provide the charge of the molecule (if it is not zero).

...good luck...dac

-- 

================================================================== David A. Case | e-mail: case_at_scripps.edu Dept. of Molecular Biology, TPC15 | fax: +1-858-784-8896 The Scripps Research Institute | phone: +1-858-784-9768 10550 N. Torrey Pines Rd. | home page: La Jolla CA 92037 USA | http://www.scripps.edu/case ==================================================================