From: [email-masked]
Date: Fri, 18 Jan 91 00:29:01 -0500

>From [email-masked]  Fri Jan 18 00:28:56 1991
Date: Thu, 17 Jan 91 23:23:02 CST
From: [email-masked] (R.Stephen Berry)
To: [email-masked]
Date: Fri, 18 Jan 91 07:24:22 -0500
From: [email-masked]
Status: RO

>From [email-masked]  Fri Jan 18 07:24:13 1991
Date:     Fri, 18 Jan 91 7:15:24 EST
From: George R Famini <[email-masked]>
To: [email-masked]
Subject:  Computational Chemistry at MARM
Date: Fri, 18 Jan 91 07:54:57 -0500
From: [email-masked]
Status: RO

>From [email-masked]  Fri Jan 18 07:54:52 1991
Date: Fri, 18 Jan 91 07:59 EST
From: "DOUGLAS A. SMITH" <[email-masked]>
Subject: MM3 question
To: [email-masked]
Date:     Fri, 18 Jan 91 12:37:51 EST
From: George R Famini <[email-masked]>
To: [email-masked]
Subject:  Re:  MM3
Status: RO

Doug:

What is MM3 having trouble with?  The stretch, bend or dihedral parameters?
Do you have the carbonyl carbons assigned as the correct type (it used to
be type 3 in MM2)?  Those carbons are not treated as double bond carbons,
(type 2 in MM2), and consequently there were/are no type 2 to type 7
parameters.  At least that's the way things used to be.  (As you well know)
I haven't used molecular mechanics in a while, and things might have 
changed, but if you haven't already thought of the above, it is a simple
thing to fix, and (as we found out the hard way) a common mistake.

				George