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

using model chemistry: TPSSh/aug-cc-pVQZ

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 TPSSh/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at TPSSh/aug-cc-pVQZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVQZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at TPSSh/aug-cc-pVQZ
 hartrees
Energy at 0K-2613.386055
Energy at 298.15K 
HF Energy-2613.386055
Nuclear repulsion energy80.740527
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 TPSSh/aug-cc-pVQZ
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 3160 3160 4.64 127.36 0.08 0.15
2 A1 1386 1386 19.84 1.13 0.28 0.44
3 A1 703 703 17.41 10.97 0.09 0.17
4 B1 47i 47i 62.94 1.02 0.75 0.86
5 B2 3318 3318 0.54 56.23 0.75 0.86
6 B2 925 925 0.77 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4722.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4722.5 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 TPSSh/aug-cc-pVQZ
ABC
9.19297 0.37861 0.36364

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.485
Br2 0.000 0.000 0.368
H3 0.000 0.954 -1.985
H4 0.000 -0.954 -1.985

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85291.07691.0769
Br21.85292.53882.5388
H31.07692.53881.9076
H41.07692.53881.9076

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 117.664 Br2 C1 H4 117.664
H3 C1 H4 124.671
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.092      
2 Br 0.138      
3 H 0.477      
4 H 0.477      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.026 1.026
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.494 0.000 0.000
y 0.000 4.666 0.000
z 0.000 0.000 6.862


<r2> (average value of r2) Å2
<r2> 42.809
(<r2>)1/2 6.543