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: MP3/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 MP3/TZVP
 hartrees
Energy at 0K-510.769557
Energy at 298.15K-510.769437
HF Energy-510.319581
Nuclear repulsion energy79.523564
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 MP3/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 2210 2067 1017.01      
2 Σ 897 839 19.42      
3 Π 531 497 3.99      
3 Π 531 497 3.99      

Unscaled Zero Point Vibrational Energy (zpe) 2085.0 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 1949.9 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 MP3/TZVP
B
0.20375

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/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 -1.677
S3 0.000 0.000 1.037

Atom - Atom Distances (Å)
  C1 O2 S3
C11.14661.5674
O21.14662.7139
S31.56742.7139

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