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

using model chemistry: MP3=FULL/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 MP3=FULL/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP3=FULL/cc-pVTZ
 hartrees
Energy at 0K-2611.906831
Energy at 298.15K 
HF Energy-2611.458273
Nuclear repulsion energy81.303787
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 MP3=FULL/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 3267 3047 4.38      
2 A1 1441 1344 18.92      
3 A1 737 687 15.22      
4 B1 224 209 65.93      
5 B2 3395 3166 1.15      
6 B2 956 892 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 5010.5 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 4672.8 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 MP3=FULL/cc-pVTZ
ABC
9.42088 0.38360 0.36859

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.474
Br2 0.000 0.000 0.366
H3 0.000 0.942 -1.977
H4 0.000 -0.942 -1.977

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.83971.06781.0678
Br21.83972.52462.5246
H31.06782.52461.8844
H41.06782.52461.8844

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 118.070 Br2 C1 H4 118.070
H3 C1 H4 123.860
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability