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

using model chemistry: MP4/aug-cc-pVTZ

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 MP4/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP4/aug-cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP4/aug-cc-pVTZ
 hartrees
Energy at 0K-2611.882445
Energy at 298.15K 
HF Energy-2611.458966
Nuclear repulsion energy80.934147
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 MP4/aug-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 A1 3195 3109        
2 A1 1394 1357        
3 A1 721 702        
4 B1 136i 132i        
5 B2 3347 3257        
6 B2 927 902        

Unscaled Zero Point Vibrational Energy (zpe) 4723.4 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 4596.8 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 MP4/aug-cc-pVTZ
ABC
9.25322 0.38043 0.36541

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.480
Br2 0.000 0.000 0.367
H3 0.000 0.951 -1.984
H4 0.000 -0.951 -1.984

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.84751.07611.0761
Br21.84752.53652.5365
H31.07612.53651.9014
H41.07612.53651.9014

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 117.936 Br2 C1 H4 117.936
H3 C1 H4 124.128
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability