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

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 2A'
1 2 yes C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-2611.891633
Energy at 298.15K 
HF Energy-2611.458035
Nuclear repulsion energy81.660934
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/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.466 0.000
Br2 0.000 -0.364 0.000
H3 -0.001 1.969 0.943
H4 -0.001 1.969 -0.943

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.83031.06831.0683
Br21.83032.51612.5161
H31.06832.51611.8854
H41.06832.51611.8854

picture of bromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 118.060 Br2 C1 H4 118.060
H3 C1 H4 123.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-2611.891633
Energy at 298.15K 
HF Energy-2611.458021
Nuclear repulsion energy81.679371
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/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3265 3100 4.83 113.11 0.10 0.18
2 A1 1439 1367 18.03 0.78 0.64 0.78
3 A1 750 712 17.56 5.91 0.16 0.27
4 B1 184 174 68.01 0.05 0.75 0.86
5 B2 3399 3227 1.85 49.30 0.75 0.86
6 B2 962 913 1.13 2.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4999.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 4746.9 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/cc-pVTZ
ABC
9.40680 0.38756 0.37222

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.466
Br2 0.000 0.000 0.364
H3 0.000 0.943 -1.968
H4 0.000 -0.943 -1.968

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.82991.06831.0683
Br21.82992.51542.5154
H31.06832.51541.8858
H41.06832.51541.8858

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 118.035 Br2 C1 H4 118.035
H3 C1 H4 123.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability