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: HF/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 2A'
1 2 yes C*V 2Σ

Conformer 1 (CS)

Jump to S1C2
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-572.246666
Energy at 298.15K-572.245943
HF Energy-572.246666
Nuclear repulsion energy78.644596
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 HF/daug-cc-pVTZ
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' 2140 1936 548.98      
2 A' 577 522 70.80      
3 A' 237 214 82.36      

Unscaled Zero Point Vibrational Energy (zpe) 1476.8 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 1335.9 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 HF/daug-cc-pVTZ
ABC
5.43132 0.19213 0.18557

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 -0.484 -0.918 0.000
C2 0.000 0.851 0.000
O3 1.029 1.312 0.000

Atom - Atom Distances (Å)
  Cl1 C2 O3
Cl11.83452.6954
C21.83451.1279
O32.69541.1279

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 129.421
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl -0.057      
2 C 0.431      
3 O -0.375      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.661 0.051 0.000 0.663
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.906 -1.292 0.000
y -1.292 -23.439 0.000
z 0.000 0.000 -22.717
Traceless
 xyz
x -1.828 -1.292 0.000
y -1.292 0.373 0.000
z 0.000 0.000 1.455
Polar
3z2-r22.911
x2-y2-1.467
xy-1.292
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.111 0.931 0.000
y 0.931 5.774 0.000
z 0.000 0.000 3.259


<r2> (average value of r2) Å2
<r2> 59.710
(<r2>)1/2 7.727

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-572.269727
Energy at 298.15K-572.267597
HF Energy-572.269727
Nuclear repulsion energy51.369244
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 HF/daug-cc-pVTZ
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 2426 2194 154.85      
2 Σ 24 21 0.03      
3 Π 40 36 0.18      
3 Π 40 36 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 1264.1 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 1143.5 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 HF/daug-cc-pVTZ
B
0.05193

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 2.037
C2 0.000 0.000 -1.843
O3 0.000 0.000 -2.946

Atom - Atom Distances (Å)
  Cl1 C2 O3
Cl13.87984.9834
C23.87981.1036
O34.98341.1036

picture of carbonyl monochloride state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 C2 O3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl 0.045      
2 C 0.065      
3 O -0.110      


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 0.051 0.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.287 0.000 0.000
y 0.000 -23.287 0.000
z 0.000 0.000 -23.937
Traceless
 xyz
x 0.325 0.000 0.000
y 0.000 0.325 0.000
z 0.000 0.000 -0.649
Polar
3z2-r2-1.299
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 3.743 0.000 0.000
y 0.000 3.743 0.000
z 0.000 0.000 4.263


<r2> (average value of r2) Å2
<r2> 175.044
(<r2>)1/2 13.230