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

using model chemistry: mPW1PW91/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 mPW1PW91/TZVP
 hartrees
Energy at 0K-511.570020
Energy at 298.15K-511.569894
HF Energy-511.570020
Nuclear repulsion energy79.448451
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 mPW1PW91/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 2163 2064 772.77 15.53 0.40 0.57
2 Σ 893 852 10.09 16.49 0.23 0.37
3 Π 528 503 3.81 1.43 0.75 0.86
3 Π 528 503 3.81 1.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2055.8 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 1961.2 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 mPW1PW91/TZVP
B
0.20347

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.527
O2 0.000 0.000 -1.679
S3 0.000 0.000 1.037

Atom - Atom Distances (Å)
  C1 O2 S3
C11.15231.5644
O21.15232.7167
S31.56442.7167

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
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.283      
2 O -0.196      
3 S -0.087      


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 0.651 0.651
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.143 0.000 0.000
y 0.000 -23.143 0.000
z 0.000 0.000 -24.801
Traceless
 xyz
x 0.829 0.000 0.000
y 0.000 0.829 0.000
z 0.000 0.000 -1.658
Polar
3z2-r2-3.316
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 2.337 0.000 0.000
y 0.000 2.337 0.000
z 0.000 0.000 7.197


<r2> (average value of r2) Å2
<r2> 56.246
(<r2>)1/2 7.500