Re: AMBER: a question

From: David A. Case <case.scripps.edu>
Date: Tue, 21 Dec 2004 14:07:51 -0800

On Tue, Dec 21, 2004, Germ?n Sciaini wrote:

> I?m trying to build a rigid molecule of ammonia and I have problems when I
> try to link all H atoms and do shake. shake does not work with H-H bond...

It may be that trying to shake all 6 edges of the ammonia tetrahedron (3 NH
bonds + 3 HH bonds) leads to too many interlocking requirements. Ideally,
you would want to adapt the matrix routine setlep() [in fastst.f] to handle
the ammonia situation, but this is probably not trivial. I don't know if
there is any simpler workaround, however.

.....good luck...dac
-----------------------------------------------------------------------
The AMBER Mail Reflector
To post, send mail to amber.scripps.edu
To unsubscribe, send "unsubscribe amber" to majordomo.scripps.edu
Received on Tue Dec 21 2004 - 22:53:00 PST
Custom Search