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

using model chemistry: CCSD(T)/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-2686.458066
Energy at 298.15K-2686.461997
HF Energy-2685.804194
Nuclear repulsion energy144.156901
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 CCSD(T)/cc-pVTZ
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' 3066 2989        
2 A' 1811 1766        
3 A' 1319 1286        
4 A' 655 639        
5 A' 369 360        
6 A" 915 892        

Unscaled Zero Point Vibrational Energy (zpe) 4068.1 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 3965.6 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 CCSD(T)/cc-pVTZ
ABC
2.49559 0.13499 0.12806

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.376 -1.197 0.000
O2 -0.464 -2.034 0.000
H3 1.458 -1.364 0.000
Br4 0.000 0.709 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.18641.09421.9428
O21.18642.03552.7820
H31.09422.03552.5344
Br41.94282.78202.5344

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 126.339 O2 C1 Br4 123.699
H3 C1 Br4 109.962
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability