Subject: symmetry keywork in MOPAC

From: <[email-masked]>
Date: Sun, 09 Feb 1997 11:02:40 -0600 (CST)

I would like to apply the SYMMETRY keyword in MOPAC.

This is to model some covalently bonded organic dimers.
Each monomer should be a reflection of the other monomer.
In addition the monomers may have some symmetry themselves.

My main problem is the way MOPAC defines bonds is by the atom number
and the NA number.
It appears to me as if some bonds are not defined in this system and
therefore cannot be included in the symmetry operatation.

I may be missing something here so please be patient and point it out.
Your response is appreciated,

Rudy Gostowski