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All results from a given calculation for CH2Br (bromomethyl radical)

using model chemistry: CISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at CISD/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at CISD/Def2TZVPP
See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CISD/Def2TZVPP
 hartrees
Energy at 0K-2611.814760
Energy at 298.15K 
HF Energy-2611.412756
Nuclear repulsion energy81.203673
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3275 3275 4.49      
2 A1 1453 1453 21.48      
3 A1 743 743 16.00      
4 B1 45 45 65.12      
5 B2 3429 3429 1.08      
6 B2 965 965 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 4954.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4954.3 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/Def2TZVPP
ABC
9.38936 0.38268 0.36769

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.476
Br2 0.000 0.000 0.366
H3 0.000 0.944 -1.978
H4 0.000 -0.944 -1.978

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.84211.06921.0692
Br21.84212.52742.5274
H31.06922.52741.8876
H41.06922.52741.8876

picture of bromomethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 118.031 Br2 C1 H4 118.031
H3 C1 H4 123.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability