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: MP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-566.510350
Energy at 298.15K-566.511389
HF Energy-566.367916
Nuclear repulsion energy84.281344
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 MP2/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' 3367 2935 4.37      
2 A' 1790 1561 135.82      
3 A' 1405 1225 47.50      
4 A' 788 687 132.09      
5 A' 464 405 8.57      
6 A" 887 773 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 4349.9 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 3792.6 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 MP2/STO-3G
ABC
2.40121 0.18589 0.17253

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.837 0.000
O2 1.180 1.214 0.000
Cl3 -0.501 -0.953 0.000
H4 -0.924 1.470 0.000

Atom - Atom Distances (Å)
  C1 O2 Cl3 H4
C11.23901.85821.1204
O21.23902.74232.1198
Cl31.85822.74232.4596
H41.12042.11982.4596

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 123.362 O2 C1 H4 127.844
Cl3 C1 H4 108.795
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability