I am trying to run a CASSCF computation for this open-shell polycarbene species. It has 10 unpaired electrons.
I get a sementation fault during the setup of the CI strings.
I can run this calculation exactly as is in our CASSCF code, so I don’t think it is a problem with the input.
memory 10 gb
molecule carbene_5 {
0 1
C 0.0000000000 5.9214795174 9.3001889023
C 0.0000000000 7.7764762644 7.4269789748
C 0.0000000000 7.0785588292 4.8096893821
C 0.0000000000 4.4591187281 4.2215442482
C 0.0000000000 2.5538628248 6.1127538172
C 0.0000000000 3.3543262487 8.7005013213
H 0.0000000000 6.4895198549 11.2723392210
H 0.0000000000 9.7510057483 7.9618546187
H 0.0000000000 3.8920402612 2.2526801633
H 0.0000000000 1.9667494814 10.2035875985
C 0.0000000000 0.0000000000 5.3539456265
C 0.0000000000 -2.5538628248 6.1127538172
C 0.0000000000 -3.3543262487 8.7005013213
C 0.0000000000 -4.4591187281 4.2215442482
C 0.0000000000 -5.9214795174 9.3001889023
H 0.0000000000 -1.9667494814 10.2035875985
C 0.0000000000 -7.0785588292 4.8096893821
H 0.0000000000 -3.8920402612 2.2526801633
C 0.0000000000 -7.7764762644 7.4269789748
H 0.0000000000 -6.4895198549 11.2723392210
H 0.0000000000 -9.7510057483 7.9618546187
C 0.0000000000 8.8370151372 2.8082804336
C 0.0000000000 -8.8370151372 2.8082804336
C 0.0000000000 -11.4027492215 2.0904415055
C 0.0000000000 -12.0074993789 -0.5243687665
C 0.0000000000 -13.4586333052 3.8551546968
C 0.0000000000 -14.5393714607 -1.4230941699
H 0.0000000000 -10.4789414832 -1.8887264688
C 0.0000000000 -15.9512576649 2.9954578072
H 0.0000000000 -13.0841991896 5.8662503814
C 0.0000000000 -16.5244304986 0.4226939416
H 0.0000000000 -17.4819981944 4.3625745096
H 0.0000000000 -18.4803140548 -0.1770352134
C 0.0000000000 11.4027492215 2.0904415055
C 0.0000000000 13.4586333052 3.8551546968
C 0.0000000000 12.0074993789 -0.5243687665
C 0.0000000000 15.9512576649 2.9954578072
H 0.0000000000 13.0841991896 5.8662503814
C 0.0000000000 14.5393714607 -1.4230941699
H 0.0000000000 10.4789414832 -1.8887264688
C 0.0000000000 16.5244304986 0.4226939416
H 0.0000000000 17.4819981944 4.3625745096
H 0.0000000000 18.4803140548 -0.1770352134
C 0.0000000000 14.9635053736 -4.0493221673
C 0.0000000000 -14.9635053736 -4.0493221673
C 0.0000000000 16.7607237441 -6.0263593178
C 0.0000000000 15.8789435150 -8.5755034964
C 0.0000000000 19.4319839152 -5.6388690843
C 0.0000000000 17.5589742987 -10.5978109262
H 0.0000000000 13.8560181448 -8.9085223741
C 0.0000000000 21.0908119718 -7.6823849105
H 0.0000000000 20.1842234179 -3.7352081099
C 0.0000000000 20.1762827887 -10.1703189699
H 0.0000000000 16.8348312442 -12.5171604070
H 0.0000000000 23.1136334070 -7.3377253198
H 0.0000000000 21.4826258986 -11.7506799281
C 0.0000000000 -16.7607237441 -6.0263593178
C 0.0000000000 -15.8789435150 -8.5755034964
C 0.0000000000 -19.4319839152 -5.6388690843
C 0.0000000000 -17.5589742987 -10.5978109262
H 0.0000000000 -13.8560181448 -8.9085223741
C 0.0000000000 -21.0908119718 -7.6823849105
H 0.0000000000 -20.1842234179 -3.7352081099
C 0.0000000000 -20.1762827887 -10.1703189699
H 0.0000000000 -16.8348312442 -12.5171604070
H 0.0000000000 -23.1136334070 -7.3377253198
H 0.0000000000 -21.4826258986 -11.7506799281
units bohr
}
set globals{
reference rhf
basis 6-31g
df_basis_mp2 cc-pvdz-ri
scf_type df
RESTRICTED_DOCC [59, 8, 8,56]
active [3, 2, 3, 2 ]
mcscf_type df
mcscf_maxiter 100
calc_s_squared true
}
set_num_threads(8)
refscf, refwfn = energy(‘casscf’, return_wfn=True)