Subject: Transition state search and link 9999 error

From: "Douglas E. Stack" <[email-masked]>
Date: Sun, 16 Nov 1997 15:18:43 -0600

When trying to do a transition state search using the PM3 semi-empirical method, the program always quits after one optimization cycle and gives the following message:

GradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGradGrad

 THERE'S SMALL CHOICE IN A BOWL OF ROTTEN APPLES.
                     SHAKESPEARE
 Error termination request processed by link 9999.
 Error termination via Lnk1e in /disk2/gaussian/g94/l9999.exe.
 Job cpu time:  0 days  0 hours 14 minutes  0.9 seconds.
 File lengths (MBytes):  RWF=    6 Int=    0 D2E=    0 Chk=    3 Scr=    1

This happens using either OPT=TS with one structure or OPT=QST2 using two structures.
What's happening??  
Program :
Gaussian 94:  SGI-G94RevB.3 30-May-1995
               13-Nov-1997

Douglas E. Stack	
Assistant Professor
Department of Chemistry
University of Nebraska at Omaha
Omaha, NE 68182-0109
(402) 554-3647
(402) 544-3888 (fax)
[email-masked]