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

using model chemistry: B2PLYP/6-31G

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/6-31G
Rotational Constants (cm-1) from geometry optimized at B2PLYP/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-2610.227509
Energy at 298.15K 
HF Energy-2610.189955
Nuclear repulsion energy78.713865
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/6-31G
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 3243 3243 3.72 113.10 0.12 0.21
2 A1 1426 1426 28.65 1.18 0.73 0.84
3 A1 643 643 22.14 10.73 0.36 0.53
4 B1 166 166 123.96 0.35 0.75 0.86
5 B2 3414 3414 0.19 56.40 0.75 0.86
6 B2 942 942 1.94 9.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4916.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4916.6 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/6-31G
ABC
9.13200 0.35812 0.34460

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.531
Br2 0.000 0.000 0.378
H3 0.000 0.957 -2.025
H4 0.000 -0.957 -2.025

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.90871.07711.0771
Br21.90872.58662.5866
H31.07712.58661.9140
H41.07712.58661.9140

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 117.318 Br2 C1 H4 117.318
H3 C1 H4 125.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.482      
2 Br 0.085      
3 H 0.199      
4 H 0.199      


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 -1.219 1.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.352 0.000 0.000
y 0.000 -24.339 0.000
z 0.000 0.000 -21.961
Traceless
 xyz
x -3.202 0.000 0.000
y 0.000 -0.182 0.000
z 0.000 0.000 3.384
Polar
3z2-r26.769
x2-y2-2.013
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.142 0.000 0.000
y 0.000 2.057 0.000
z 0.000 0.000 5.259


<r2> (average value of r2) Å2
<r2> 44.212
(<r2>)1/2 6.649