Geometry optimizations

Search:

Geometry optimizations

From: Alessandro Bagno <alessandro.bagno_at_email.domain.hidden>
Date: Mon, 04 Feb 2002 11:56:45 +0100
X-Mailer: Mozilla 4.79 [en] (Win98; U)

Dear ADF users:
I am running some geometry optimizations with ADF (large molecules, both
with high and low symmetry). I am using the default thresholds in energy
(tolE = 1e-3) and gradient (tolG = 1e-2). Surprisingly, very often there
is no clear convergence but an oscillating behavior. In such cases,
(assuming the oscillations are small) does it make sense to stop at a
convenient point, for example at a low energy value as probed by the
"E-test" ?
Thanks for any help,

--
Alessandro Bagno
Centro CNR Meccanismi Reazioni Organiche, Dip. Chimica Organica
Universita' di Padova, via Marzolo 1 - 35131 Padova (Italy)
tel. +39 0498275660; fax 0498275239
http://www.chor.unipd.it/~alex
Received on 2002-02-04 11:14:20

This archive was generated by hypermail 2.2.0 : 2006-11-02 07:00:02 CET