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Illusionist

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[求助] G09中的荧光计算部分的例子,第四部分

前面几步都已经顺利完成。但是第四步的时候,Opt=RCFC加入之后就会出错。只用opt就好使。我想知道rcfc对这一步计算在结果上会不会有影响。
谢谢

%chk=step4.chk
# B3LYP/6-31+G(d,p) TD=(Read,NStates=6,Root=1) SCRF=(Solvent=Ethanol)
Geom=Modify Guess=Read Opt=RCFC
Acetaldehyde: excited state opt
Modify geometry to break Cs symmetry
since first excited state is A"
0 1
4 1 2 3 10.0
5 1 2 7 -50.0


Initialization pass.
Cartesian force constants read from checkpoint file:
step4.chk
Length of force constants on CHK file is     0 NAT3TT is 14196
Error termination via Lnk1e in /home/gaussian//g09/l103.exe at Wed Nov 30 08:32:45 2011.




官网有这段话:
Note that Cartesian force constants are only available on the checkpoint file after a frequency calculation. You cannot use this option after an optimization dies because of a wrong number of negative eigenvalues in the approximate second derivative matrix. In the latter case, you may want to start from the most recent geometry and compute some derivatives numerically (see below). ReadCartesianFC is a synonym for RCFC.

但是第三步并没有进行频率计算啊···

[ Last edited by Illusionist on 2011-11-30 at 08:46 ]
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nilanle

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【答案】应助回帖

★ ★ ★
小红豆(金币+3): 谢谢回帖 2011-11-30 13:34:58
Illusionist(金币+1): 谢谢 2011-11-30 14:25:04

Illusionist

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