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

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

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

Conformer 1 (CS)

Jump to S1C2
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-2609.091442
Energy at 298.15K-2609.095374
HF Energy-2608.866731
Nuclear repulsion energy80.117648
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3267 3018 6.25      
2 A' 1456 1345 26.21      
3 A' 705 651 19.66      
4 A' 378 349 60.55      
5 A" 3417 3156 0.00      
6 A" 970 896 1.08      

Unscaled Zero Point Vibrational Energy (zpe) 5095.9 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 4707.1 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 CID/6-31G*
ABC
9.11766 0.37212 0.35818

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.008 1.500 0.000
Br2 -0.008 -0.371 0.000
H3 0.156 1.989 0.947
H4 0.156 1.989 -0.947

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.87051.07811.0781
Br21.87052.54782.5478
H31.07812.54781.8934
H41.07812.54781.8934

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 116.986 Br2 C1 H4 116.986
H3 C1 H4 122.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-2609.091334
Energy at 298.15K 
HF Energy-2608.866458
Nuclear repulsion energy80.198929
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 CID/6-31G*
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 3277 3027 4.42      
2 A1 1454 1343 27.94      
3 A1 708 654 17.72      
4 B1 276i 255i 76.07      
5 B2 3432 3170 0.17      
6 B2 960 886 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 4776.8 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 4412.3 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 CID/6-31G*
ABC
9.23326 0.37293 0.35845

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.496
Br2 0.000 0.000 0.371
H3 0.000 0.952 -2.000
H4 0.000 -0.952 -2.000

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86691.07701.0770
Br21.86692.55482.5548
H31.07702.55481.9035
H41.07702.55481.9035

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 117.908 Br2 C1 H4 117.908
H3 C1 H4 124.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability