return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/6-31G*

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 B3LYP/6-31G*
 hartrees
Energy at 0K-511.535546
Energy at 298.15K-511.535376
HF Energy-511.535546
Nuclear repulsion energy78.791466
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 B3LYP/6-31G*
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 2131 2046 649.92 12.29 0.41 0.58
2 Σ 871 837 9.82 14.27 0.23 0.37
3 Π 509 489 6.61 1.02 0.75 0.86
3 Π 509 489 6.61 1.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2010.2 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 1930.4 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 B3LYP/6-31G*
B
0.20019

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.529
O2 0.000 0.000 -1.694
S3 0.000 0.000 1.045

Atom - Atom Distances (Å)
  C1 O2 S3
C11.16501.5746
O21.16502.7396
S31.57462.7396

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 B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.321      
2 O -0.301      
3 S -0.020      


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 0.435 0.435
CHELPG 0.000 0.000 0.260 0.260
AIM 0.000 0.000 -3.817 3.817
ESP 0.000 0.000 0.317 0.317


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.030 0.000 0.000
y 0.000 -23.030 0.000
z 0.000 0.000 -24.532
Traceless
 xyz
x 0.751 0.000 0.000
y 0.000 0.751 0.000
z 0.000 0.000 -1.501
Polar
3z2-r2-3.003
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 2.149 0.000 0.000
y 0.000 2.149 0.000
z 0.000 0.000 6.713


<r2> (average value of r2) Å2
<r2> 56.824
(<r2>)1/2 7.538