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

using model chemistry: mPW1PW91/6-31+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 mPW1PW91/6-31+G**
 hartrees
Energy at 0K-511.510423
Energy at 298.15K-511.510266
HF Energy-511.510423
Nuclear repulsion energy79.175395
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 mPW1PW91/6-31+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 2154 2050 782.78 17.87 0.59 0.74
2 Σ 895 852 10.72 19.06 0.15 0.26
3 Π 510 485 3.95 1.38 0.75 0.86
3 Π 510 485 3.95 1.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2034.7 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 1936.6 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 mPW1PW91/6-31+G**
B
0.20219

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.525
O2 0.000 0.000 -1.686
S3 0.000 0.000 1.040

Atom - Atom Distances (Å)
  C1 O2 S3
C11.16161.5648
O21.16162.7264
S31.56482.7264

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 mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.208      
2 O -0.254      
3 S 0.046      


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 0.712 0.712
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.252 0.000 0.000
y 0.000 -23.252 0.000
z 0.000 0.000 -24.968
Traceless
 xyz
x 0.858 0.000 0.000
y 0.000 0.858 0.000
z 0.000 0.000 -1.716
Polar
3z2-r2-3.431
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 2.523 0.000 0.000
y 0.000 2.523 0.000
z 0.000 0.000 7.404


<r2> (average value of r2) Å2
<r2> 56.590
(<r2>)1/2 7.523