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/SDD

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/SDD
 hartrees
Energy at 0K-572.978466
Energy at 298.15K-572.979468
HF Energy-572.700758
Nuclear repulsion energy83.451853
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/SDD
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' 3159 3050 24.04      
2 A' 1616 1560 321.64      
3 A' 1321 1275 58.38      
4 A' 632 610 197.51      
5 A' 392 378 29.51      
6 A" 898 867 6.64      

Unscaled Zero Point Vibrational Energy (zpe) 4008.9 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 3869.8 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 MP2/SDD
ABC
2.40932 0.18050 0.16792

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.861 0.000
O2 1.171 1.243 0.000
Cl3 -0.498 -0.975 0.000
H4 -0.912 1.473 0.000

Atom - Atom Distances (Å)
  C1 O2 Cl3 H4
C11.23181.90271.0979
O21.23182.77572.0958
Cl31.90272.77572.4828
H41.09792.09582.4828

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 123.203 O2 C1 H4 128.112
Cl3 C1 H4 108.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability