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

using model chemistry: B3PW91/3-21G*

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 B3PW91/3-21G*
 hartrees
Energy at 0K-508.957655
Energy at 298.15K-508.957538
HF Energy-508.957655
Nuclear repulsion energy78.699979
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 B3PW91/3-21G*
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 2087 2003 506.06      
2 Σ 880 844 6.67      
3 Π 542 520 5.77      
3 Π 542 520 5.77      

Unscaled Zero Point Vibrational Energy (zpe) 2025.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 1943.4 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 B3PW91/3-21G*
B
0.19996

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.520
O2 0.000 0.000 -1.699
S3 0.000 0.000 1.045

Atom - Atom Distances (Å)
  C1 O2 S3
C11.17931.5644
O21.17932.7437
S31.56442.7437

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
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.291      
2 O -0.390      
3 S 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.440 0.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.187 0.000 0.000
y 0.000 -23.187 0.000
z 0.000 0.000 -25.053
Traceless
 xyz
x 0.933 0.000 0.000
y 0.000 0.933 0.000
z 0.000 0.000 -1.866
Polar
3z2-r2-3.731
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.828 0.000 0.000
y 0.000 1.828 0.000
z 0.000 0.000 6.380


<r2> (average value of r2) Å2
<r2> 57.046
(<r2>)1/2 7.553