return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for OCS (Carbonyl sulfide)

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-511.288818
Energy at 298.15K-511.288662
HF Energy-511.288818
Nuclear repulsion energy79.142641
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 HSEh1PBE/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 2153 2056 775.42 18.15 0.59 0.74
2 Σ 896 855 10.34 19.13 0.15 0.26
3 Π 510 487 3.81 1.38 0.75 0.86
3 Π 510 487 3.81 1.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2034.2 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1942.3 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 HSEh1PBE/6-31+G**
B
0.20202

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/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 -1.687
S3 0.000 0.000 1.040

Atom - Atom Distances (Å)
  C1 O2 S3
C11.16221.5653
O21.16222.7275
S31.56532.7275

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 HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.206      
2 O -0.255      
3 S 0.049      


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 0.705 0.705
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.300 0.000 0.000
y 0.000 -23.300 0.000
z 0.000 0.000 -24.982
Traceless
 xyz
x 0.841 0.000 0.000
y 0.000 0.841 0.000
z 0.000 0.000 -1.681
Polar
3z2-r2-3.363
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 2.535 0.000 0.000
y 0.000 2.535 0.000
z 0.000 0.000 7.419


<r2> (average value of r2) Å2
<r2> 56.647
(<r2>)1/2 7.526