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 ClCO (carbonyl monochloride)

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-566.696581
Energy at 298.15K-566.696020
HF Energy-566.696581
Nuclear repulsion energy75.741032
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 PBE1PBE/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 1963 1732 74.09      
2 A' 677 597 53.31      
3 A' 394 347 5.84      

Unscaled Zero Point Vibrational Energy (zpe) 1516.9 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 1338.0 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 PBE1PBE/STO-3G
ABC
4.37730 0.18272 0.17540

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 -0.536 -0.918 0.000
C2 0.000 0.879 0.000
O3 1.139 1.290 0.000

Atom - Atom Distances (Å)
  Cl1 C2 O3
Cl11.87512.7710
C21.87511.2105
O32.77101.2105

picture of carbonyl monochloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 C2 O3 126.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl -0.111      
2 C 0.195      
3 O -0.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.329 0.904 0.000 0.962
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.252 -0.835 0.000
y -0.835 -21.425 0.000
z 0.000 0.000 -20.394
Traceless
 xyz
x -1.343 -0.835 0.000
y -0.835 -0.102 0.000
z 0.000 0.000 1.444
Polar
3z2-r22.889
x2-y2-0.827
xy-0.835
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.501 1.047 0.000
y 1.047 2.820 0.000
z 0.000 0.000 0.541


<r2> (average value of r2) Å2
<r2> 60.864
(<r2>)1/2 7.802