***,C3, CASPT3(12,12)/aug-cc-pVTZ calculation between X Sigma(+)(g) and 1Delta states with IPEA
memory,800,m
GEOMTYP=xyz
BOHR
GEOMETRY={
C        0.0000000000            0.0000000000            0.0000000000
C        0.0000000000            0.0000000000            2.4534561343
C        0.0000000000            0.0000000000           -2.4534561343}

BASIS=AVTZ

INT

{MULTI
occ,5,2,2,0,4,1,1,0
closed,2,0,0,0,1,0,0,0
wf,18,1,0
state,2
lquant,0,2
wf,18,4,0
lquant,2
expec2,lzz
canonical
print,orbitals,civector}

{RS3,shift=0.3,ipea=0.25
wf,18,1,0
state,2}
---