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/TZVP

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/TZVP
 hartrees
Energy at 0K-510.771692
Energy at 298.15K-510.771563
HF Energy-510.319138
Nuclear repulsion energy79.347064
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/TZVP
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 2171 2058 950.48      
2 Σ 886 840 20.96      
3 Π 528 500 3.93      
3 Π 528 500 3.93      

Unscaled Zero Point Vibrational Energy (zpe) 2056.3 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 1949.3 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/TZVP
B
0.20288

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.530
O2 0.000 0.000 -1.681
S3 0.000 0.000 1.039

Atom - Atom Distances (Å)
  C1 O2 S3
C11.15051.5696
O21.15052.7200
S31.56962.7200

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