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

using model chemistry: CCD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-2683.912610
Energy at 298.15K-2683.916584
HF Energy-2683.377592
Nuclear repulsion energy146.094147
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/6-31G(2df,p)
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 2943 20.19      
2 A' 1886 1786 336.71      
3 A' 1368 1296 59.81      
4 A' 693 656 151.14      
5 A' 387 367 3.79      
6 A" 952 901 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 4196.3 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 3974.7 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/6-31G(2df,p)
ABC
2.51130 0.13914 0.13183

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.375 -1.174 0.000
O2 -0.463 -2.005 0.000
H3 1.456 -1.354 0.000
Br4 0.000 0.698 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.18041.09611.9091
O21.18042.02642.7429
H31.09612.02642.5164
Br41.90912.74292.5164

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 125.737 O2 C1 Br4 123.465
H3 C1 Br4 110.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability