[molpro-user] procedure problem
harding
harding at anl.gov
Sat Oct 19 19:07:34 BST 2013
I have stumbled across a problem when using procedures in geometry
optimizations.
The following is an example of a procedure in which one first does a
doublet ccsd(t) calculation followed by a quartet casscf calculation:
memory,10,m
ANGSTROM
geometry={
h1
h2, h1, rh1
h3, h1, rh1, h2, ah1 }
RH1= 1.076
AH1= 120.000
PROC mix_opt
basis=cc-pvdz
{rhf; occ,1,0,1,0; closed,1,0,0,0; wf, 3, 3, 1 }
uccsd(t)
e1 = energy
{multi; occ,2,0,1,0; closed,0,0,0,0; wf, 3, 3, 3 }
e3 = energy
e4 = e1 + e3
ENDPROC
{optg,proc=mix_opt,variable=e4}
This example appears to work correctly. However, if I just insert either
a rs2 or ci step after the multi step then things do not seem to work
correctly in that subsequent uccsd(t) calculations will be for a quartet
state instead of the doublet state as requested. I am using version
2010.1 of MOLPRO.
Any suggestions would be appreciated.
Thanks.
Larry Harding
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