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

using model chemistry: B2PLYP=FULL/3-21G

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 B2PLYP=FULL/3-21G
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B2PLYP=FULL/3-21G
 hartrees
Energy at 0K-2600.282202
Energy at 298.15K 
HF Energy-2600.242990
Nuclear repulsion energy78.476535
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 B2PLYP=FULL/3-21G
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 3232 3077 3.74 99.80 0.12 0.21
2 A1 1427 1359 32.10 1.16 0.74 0.85
3 A1 660 628 20.34 9.37 0.37 0.54
4 B1 120 114 128.96 0.49 0.75 0.86
5 B2 3396 3233 0.14 52.60 0.75 0.86
6 B2 917 873 1.95 8.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4876.1 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 4642.0 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 B2PLYP=FULL/3-21G
ABC
9.18823 0.35555 0.34230

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.536
Br2 0.000 0.000 0.379
H3 0.000 0.954 -2.032
H4 0.000 -0.954 -2.032

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.91561.07541.0754
Br21.91562.59372.5937
H31.07542.59371.9081
H41.07542.59371.9081

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 117.481 Br2 C1 H4 117.481
H3 C1 H4 125.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability