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/TZVP

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/TZVP
 hartrees
Energy at 0K-573.322564
Energy at 298.15K-573.323717
HF Energy-572.846532
Nuclear repulsion energy87.783481
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/TZVP
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' 3133 2970 25.25      
2 A' 1799 1706 320.01      
3 A' 1390 1317 37.44      
4 A' 751 712 226.55      
5 A' 464 440 15.61      
6 A" 961 911 1.78      

Unscaled Zero Point Vibrational Energy (zpe) 4249.3 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 4027.9 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 MP2/TZVP
ABC
2.60170 0.20186 0.18733

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.799 0.000
O2 1.131 1.166 0.000
Cl3 -0.480 -0.915 0.000
H4 -0.888 1.435 0.000

Atom - Atom Distances (Å)
  C1 O2 Cl3 H4
C11.18901.78041.0923
O21.18902.63162.0373
Cl31.78042.63162.3853
H41.09232.03732.3853

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 123.581 O2 C1 H4 126.469
Cl3 C1 H4 109.950
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability