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

using model chemistry: mPW1PW91/6-31G**

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 mPW1PW91/6-31G**
 hartrees
Energy at 0K-511.505682
Energy at 298.15K-511.505533
HF Energy-511.505682
Nuclear repulsion energy79.136385
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 mPW1PW91/6-31G**
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 2171 2066 696.84 12.41 0.42 0.59
2 Σ 894 850 10.71 14.46 0.23 0.37
3 Π 517 492 7.06 1.03 0.75 0.86
3 Π 517 492 7.06 1.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2049.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 1949.7 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 mPW1PW91/6-31G**
B
0.20196

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.526
O2 0.000 0.000 -1.687
S3 0.000 0.000 1.041

Atom - Atom Distances (Å)
  C1 O2 S3
C11.16061.5671
O21.16062.7277
S31.56712.7277

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 mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.317      
2 O -0.309      
3 S -0.008      


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        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.988 0.000 0.000
y 0.000 -22.988 0.000
z 0.000 0.000 -24.438
Traceless
 xyz
x 0.725 0.000 0.000
y 0.000 0.725 0.000
z 0.000 0.000 -1.451
Polar
3z2-r2-2.901
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 2.142 0.000 0.000
y 0.000 2.142 0.000
z 0.000 0.000 6.690


<r2> (average value of r2) Å2
<r2> 56.418
(<r2>)1/2 7.511