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

using model chemistry: MP2/6-31+G**

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 MP2/6-31+G**
 hartrees
Energy at 0K-510.693336
Energy at 298.15K-510.693138
HF Energy-510.258599
Nuclear repulsion energy78.619407
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 MP2/6-31+G**
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 2082 1958 647.91 27.42 0.55 0.71
2 Σ 899 846 6.15 38.54 0.19 0.32
3 Π 483 454 1.40 1.36 0.75 0.86
3 Π 483 454 1.40 1.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1973.3 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 1856.1 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 MP2/6-31+G**
B
0.19958

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.519
O2 0.000 0.000 -1.701
S3 0.000 0.000 1.045

Atom - Atom Distances (Å)
  C1 O2 S3
C11.18251.5642
O21.18252.7467
S31.56422.7467

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability