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

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-2683.238160
Energy at 298.15K-2683.242043
HF Energy-2682.988952
Nuclear repulsion energy140.672145
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 CISD/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' 3185 2987 23.49      
2 A' 1757 1647 387.86      
3 A' 1366 1281 90.17      
4 A' 617 578 155.50      
5 A' 348 326 13.07      
6 A" 924 867 5.72      

Unscaled Zero Point Vibrational Energy (zpe) 4097.9 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 3843.0 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 CISD/6-31G
ABC
2.39594 0.12832 0.12180

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.389 -1.235 0.000
O2 -0.475 -2.082 0.000
H3 1.466 -1.397 0.000
Br4 0.000 0.728 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.20981.08992.0008
O21.20982.05862.8499
H31.08992.05862.5817
Br42.00082.84992.5817

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 126.983 O2 C1 Br4 123.266
H3 C1 Br4 109.751
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability