From Eugenia.Migliavacca@ict.unil.ch  Fri Apr 18 13:37:08 1997
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Date: Fri, 18 Apr 1997 18:52:25 +0200
To: chemistry@www.ccl.net
From: Jenny <Eugenia.Migliavacca@ict.unil.ch>
Subject: radical AM1 geometry optimization


Dear CCL,

        I would like to know which is the best method to optimize radicals
(C; N; O) using AM1 as implemented in MOPAC. In  particular, is it better to
use UHF or open-shell RHF approximation  to obtain a good geometry?
        Any literature reference is appreciated.
        Thank you in advances,
        
Eugenia Migliavacca
Institut de Chimie Thérapeutique
BEP
CH-1015 Dorigny-Lausanne

Tèl.: +41.21.6924529
E-mail: Eugenia.Migliavacca@ict.unil.ch