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

using model chemistry: MP2=FULL/6-31G

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 MP2=FULL/6-31G
 hartrees
Energy at 0K-510.450300
Energy at 298.15K-510.449959
HF Energy-510.150613
Nuclear repulsion energy76.294528
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 MP2=FULL/6-31G
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 1951 1853 476.42 21.79 0.34 0.50
2 Σ 796 756 7.89 34.02 0.28 0.44
3 Π 419 398 2.10 1.79 0.75 0.86
3 Π 419 398 2.10 1.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1791.9 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 1702.5 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 MP2=FULL/6-31G
B
0.18768

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.547
O2 0.000 0.000 -1.749
S3 0.000 0.000 1.080

Atom - Atom Distances (Å)
  C1 O2 S3
C11.20231.6269
O21.20232.8292
S31.62692.8292

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