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

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

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCSD(T)/6-311G*
 hartrees
Energy at 0K-2611.629281
Energy at 298.15K 
HF Energy-2611.356125
Nuclear repulsion energy80.223601
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)/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 3162 3043        
2 A1 1415 1362        
3 A1 703 677        
4 B1 168i 162i        
5 B2 3314 3190        
6 B2 948 913        

Unscaled Zero Point Vibrational Energy (zpe) 4686.8 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 4511.5 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)/6-311G*
ABC
9.15109 0.37354 0.35889

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.494
Br2 0.000 0.000 0.371
H3 0.000 0.956 -2.002
H4 0.000 -0.956 -2.002

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86461.08251.0825
Br21.86462.55782.5578
H31.08252.55781.9120
H41.08252.55781.9120

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 117.977 Br2 C1 H4 117.977
H3 C1 H4 124.046
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability