Saddle point search with Gaussian



Dear CCL'ers,
I tried to find TS between two minima with Gaussian 94.  All standard ways like
OPT=TS  or QST2  or QST3 failed.  When I did 'manual' search for changing one
angle which realy differs both structure - opening of 3-membered ring (it means
OPT=Z-MATRIX and then in variables deklaration: a1=90.0 S 10 0.01) I found value
for witch energii was the highest. FREQ calculations shows for this structure
two negative frequencies. When I started for the same input OPT=(saddle=2)
I became in log-file:
"Optimization stopped.
  -- Wrong number of Negative eigenvalues: Desiered=  2  Actual=  0
  -- Flag reset to prevent archiving."

So my question: What are this eigenvalues? I've expected after IR-calculation,
that I should be near saddle point or minima. And second: Is there any other
way to find TS or saddle point?

thanks in advance

 
        Krzys Radacki
  _________________________----------------------------------------------------
  -------------------------  
 e-mail:       Krys.Radacki - at -
 ac.RWTH-Aachen.DE  ---
  -----------------------------------------------------------------------------