Subject: imaginary frequencies in cycloaddition's TS

From: Alessandro Contini <alessandro.contini..at..unimi.it>
Date: Mon, 17 Nov 2003 10:35:53 +0100 (CET)

Hi,
This could be a naive question, but I'd like to ask if is it possible to
state if a cycloaddition reaction proceeds by a syncronous or asyncronous
mechanism by visual inspection of the TS' imaginary frequency.
Any suggestion or litt. ref. will be appreciated.

Thanks a lot

Alessandro

Alessandro Contini, Ph.D.
Istituto di Chimica Organica "Alessandro Marchesini"
Universit` degli Studi di Milano, Facolt` di Farmacia
Via Venezian, 21 20133 Milano
Tel. +390250314480 Fax. +390250314476
e-mail alessandro.contini..at..unimi.it