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 COHCl (Formyl chloride)

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-570.418495
Energy at 298.15K-570.419592
HF Energy-570.052257
Nuclear repulsion energy86.566172
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 A' 3107 2972 29.89      
2 A' 1729 1653 208.81      
3 A' 1409 1347 47.97      
4 A' 695 664 197.29      
5 A' 435 416 19.29      
6 A" 960 919 3.13      

Unscaled Zero Point Vibrational Energy (zpe) 4167.1 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 3985.8 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*
ABC
2.53211 0.19626 0.18214

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.811 0.000
O2 1.153 1.180 0.000
Cl3 -0.490 -0.926 0.000
H4 -0.898 1.431 0.000

Atom - Atom Distances (Å)
  C1 O2 Cl3 H4
C11.21041.80451.0916
O21.21042.67032.0666
Cl31.80452.67032.3921
H41.09162.06662.3921

picture of Formyl chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 Cl3 123.471 O2 C1 H4 127.659
Cl3 C1 H4 108.871
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability