memory 38 gb

molecule thio { 
units angstrom
1	1
H               0.0000000000      0.0000000000      1.5087040000
H               0.0000000000      1.2583600000     -1.1784870000
H               0.0000000000     -1.2583600000     -1.1784870000
H               0.0000000000      2.0051120000      0.3711430000
H               0.0000000000     -2.0051120000      0.3711430000
C               0.0000000000      0.0000000000      0.4241650000
N               0.0000000000      1.1580870000     -0.1742150000
N               0.0000000000     -1.1580870000     -0.1742150000
symmetry c2v
}

set {
scf_type cd
cc_type cd
freeze_core true
basis aug-cc-pVDZ
cholesky_tolerance 1e-9
roots_per_irrep [0,0,1,0]
}

energy('eom-cc3')