From B130778@vax.csc.cuhk.hk  Thu Dec 10 23:17:00 1992
Date: Thu, 10 Dec 1992 15:17 +0800
From: B130778@vax.csc.cuhk.hk
Subject: Stability test in Gaussian 90
To: CHEMISTRY@ccl.net
Message-Id: <01GS5LNCNUQ88WWR4R@vax.csc.cuhk.hk>


Dear fellow Gaussian users,

	Sorry to waste the bandwidth.  I have sent help to GAUSSIAN many many 
times but didn't get any reply.  I would appreciate any input to my problem.

	I was checking for the stability of the RHF wavefunction for a 
closed-shell molecule with G90.  The following is the output from G90:

 ***********************************************************************
 Matrix         Lowest Root    Major Pairs
 ***********************************************************************
 Internal RHF     0.1012485    Stable
 RRHF --> CRHF    0.0665675    Stable

 RRHF --> RUHF   -0.0486567    11A=14B 10A=13B 11A=13B 10A=14B 9A=12B 7A=12B 10A=
 18B 11A=17B 10A=22B 11A=21B
 Not stable.
 ***********************************************************************

	Does it mean my molecule is RHF -> UHF unstable? 

Ida N. L. Ma

Research assistant
Dept. of Chemistry
Chinese University of Hong Kong