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All results from a given calculation for COHBr (Formyl bromide)

using model chemistry: MP2=FULL/6-31G*

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=FULL/6-31G*
 hartrees
Energy at 0K-2683.638240
Energy at 298.15K-2683.642149
HF Energy-2683.183633
Nuclear repulsion energy143.086713
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=FULL/6-31G*
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' 3148 2966 22.87      
2 A' 1821 1716 345.16      
3 A' 1348 1270 70.78      
4 A' 653 615 180.25      
5 A' 358 338 15.60      
6 A" 924 871 3.53      

Unscaled Zero Point Vibrational Energy (zpe) 4126.0 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 3887.5 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=FULL/6-31G*
ABC
2.45941 0.13295 0.12613

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.380 -1.208 0.000
O2 -0.468 -2.049 0.000
H3 1.465 -1.361 0.000
Br4 0.000 0.714 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.19511.09571.9591
O21.19512.05182.8032
H31.09572.05182.5406
Br41.95912.80322.5406

picture of Formyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 H3 127.136 O2 C1 Br4 123.605
H3 C1 Br4 109.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability