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

using model chemistry: CCSD/6-311G*

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 CCSD/6-311G*
Rotational Constants (cm-1) from geometry optimized at CCSD/6-311G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCSD/6-311G*
 hartrees
Energy at 0K-2611.621888
Energy at 298.15K 
HF Energy-2611.356167
Nuclear repulsion energy80.337549
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/6-311G*
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 3180 3033 6.66      
2 A1 1423 1357 19.52      
3 A1 712 679 15.87      
4 B1 154i 147i 88.03      
5 B2 3333 3178 0.03      
6 B2 954 910 2.28      

Unscaled Zero Point Vibrational Energy (zpe) 4724.3 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 4504.6 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/6-311G*
ABC
9.18335 0.37458 0.35990

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.492
Br2 0.000 0.000 0.370
H3 0.000 0.954 -2.000
H4 0.000 -0.954 -2.000

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86191.08101.0810
Br21.86192.55462.5546
H31.08102.55461.9086
H41.08102.55461.9086

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 118.019 Br2 C1 H4 118.019
H3 C1 H4 123.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability