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All results from a given calculation for OCS (Carbonyl sulfide)

using model chemistry: QCISD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-510.900510
Energy at 298.15K-510.900387
HF Energy-510.341088
Nuclear repulsion energy79.127559
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2106 2027 828.16      
2 Σ 869 837 16.39      
3 Π 534 514 2.56      
3 Π 534 514 2.56      

Unscaled Zero Point Vibrational Energy (zpe) 2021.5 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 1945.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at QCISD/aug-cc-pVTZ
B
0.20180

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.531
O2 0.000 0.000 -1.686
S3 0.000 0.000 1.042

Atom - Atom Distances (Å)
  C1 O2 S3
C11.15531.5724
O21.15532.7277
S31.57242.7277

picture of Carbonyl sulfide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 S3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability