return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for OCS (Carbonyl sulfide)

using model chemistry: CCD/6-311G**

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 CCD/6-311G**
 hartrees
Energy at 0K-510.761009
Energy at 298.15K-510.760886
HF Energy-510.310935
Nuclear repulsion energy79.406534
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 CCD/6-311G**
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 2178 2080 932.87      
2 Σ 897 857 20.96      
3 Π 529 505 5.56      
3 Π 529 505 5.56      

Unscaled Zero Point Vibrational Energy (zpe) 2066.7 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 1973.9 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 CCD/6-311G**
B
0.20322

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.529
O2 0.000 0.000 -1.680
S3 0.000 0.000 1.038

Atom - Atom Distances (Å)
  C1 O2 S3
C11.15121.5668
O21.15122.7181
S31.56682.7181

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