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

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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 MP2=FULL/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-311+G(3df,2p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP2=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-2612.141580
Energy at 298.15K 
HF Energy-2611.369424
Nuclear repulsion energy81.535866
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 MP2=FULL/6-311+G(3df,2p)
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 3245 3059 4.08 112.37 0.08 0.14
2 A1 1430 1348 16.98 1.11 0.25 0.40
3 A1 751 708 17.26 7.39 0.08 0.14
4 B1 66i 62i 66.30 1.11 0.75 0.86
5 B2 3402 3207 3.01 46.83 0.75 0.86
6 B2 961 906 0.97 0.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4861.4 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 4582.8 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 MP2=FULL/6-311+G(3df,2p)
ABC
9.34150 0.38634 0.37099

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.468
Br2 0.000 0.000 0.364
H3 0.000 0.946 -1.972
H4 0.000 -0.946 -1.972

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.83261.07211.0721
Br21.83262.52102.5210
H31.07212.52101.8924
H41.07212.52101.8924

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 118.046 Br2 C1 H4 118.046
H3 C1 H4 123.909
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability