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

using model chemistry: QCISD/3-21G

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 QCISD/3-21G
 hartrees
Energy at 0K-507.950809
Energy at 298.15K-507.950604
HF Energy-507.663821
Nuclear repulsion energy76.573455
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 QCISD/3-21G
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 2010 1948 477.67      
2 Σ 754 731 11.93      
3 Π 507 491 6.95      
3 Π 507 491 6.95      

Unscaled Zero Point Vibrational Energy (zpe) 1888.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 1830.5 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 QCISD/3-21G
B
0.18862

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.560
O2 0.000 0.000 -1.739
S3 0.000 0.000 1.079

Atom - Atom Distances (Å)
  C1 O2 S3
C11.17811.6399
O21.17812.8181
S31.63992.8181

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