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All results from a given calculation for ClCO (carbonyl monochloride)

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C*V 2Σ

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at CCD/3-21G*
Rotational Constants (cm-1) from geometry optimized at CCD/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-569.795106
Energy at 298.15K-569.793318
HF Energy-569.464503
Nuclear repulsion energy59.365458
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 CCD/3-21G*
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 2148 2055 32.84      
2 Σ 108 104 3.99      
3 Π 89 85 0.09      
3 Π 89 85 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 1217.3 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 1164.3 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 CCD/3-21G*
B
0.08566

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 0.000 0.000 1.569
C2 0.000 0.000 -1.248
O3 0.000 0.000 -2.399

Atom - Atom Distances (Å)
  Cl1 C2 O3
Cl12.81693.9680
C22.81691.1511
O33.96801.1511

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