Masoud Nahali
masoudnahali@gmail.com
Is one of the frequencies too small ? If so please double the number of displacements in each direction to see whether the smaller frequency disappears or not. You can apply it using $FORCE NVIB=2 $END. Then please let us know whether it improves the results. If the issue doesn't fit the proposed solution please let us see the output file.
Sincerely Yours, m
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Masoud Nahali
SUT
On Sat Nov 30 '13 10:47pm, guilherme wrote
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>Hi guys,
>I have a problem with the calculate of the hessian. I cannot achieve the correct conformation of my transition state. The calculate ends "normally" but it shows the message:
>THIS IS NOT A STATIONARY POINT ON THE MOLECULAR PES *
>* THE VIBRATIONAL ANALYSIS IS NOT VALID !!!
>and in the result I had to find just one negative frequency but in this case found 2 negative frequencies.
>
>
>My input is:
> $contrl runtyp=hessian coord=zmt nzvar= 39 $end
> $basis gbasis=N311 ngauss=6 ndfunc=1 npfunc=1 nffunc=1 $end
> $contrl icut=11 itol=30 maxit=5000 $end
> $statpt hssend=.t. nstep=1000 dxmax=0.1 trupd=.f. $end
> $data
>I've already tried to freeze the important bonds but didn't work too.
>Please guys, does someone have an idea?
>