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

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

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 HSEh1PBE/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/6-311+G(3df,2p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311+G(3df,2p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HSEh1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-2613.010674
Energy at 298.15K 
HF Energy-2613.010674
Nuclear repulsion energy81.137934
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 HSEh1PBE/6-311+G(3df,2p)
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 3185 3185 3.78 114.01 0.08 0.15
2 A1 1381 1381 14.22 1.08 0.27 0.43
3 A1 725 725 16.22 10.04 0.09 0.17
4 B1 193 193 65.08 1.10 0.75 0.86
5 B2 3341 3341 1.43 52.36 0.75 0.86
6 B2 930 930 1.02 0.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4877.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4877.2 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 HSEh1PBE/6-311+G(3df,2p)
ABC
9.22878 0.38262 0.36739

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.476
Br2 0.000 0.000 0.366
H3 0.000 0.952 -1.979
H4 0.000 -0.952 -1.979

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.84211.07671.0767
Br21.84212.53102.5310
H31.07672.53101.9039
H41.07672.53101.9039

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 117.852 Br2 C1 H4 117.852
H3 C1 H4 124.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.280      
2 Br -0.037      
3 H 0.158      
4 H 0.158      


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 -1.000 1.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.508 0.000 0.000
y 0.000 -24.432 0.000
z 0.000 0.000 -21.976
Traceless
 xyz
x -3.304 0.000 0.000
y 0.000 -0.190 0.000
z 0.000 0.000 3.494
Polar
3z2-r26.988
x2-y2-2.076
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.269 0.000 0.000
y 0.000 4.403 0.000
z 0.000 0.000 6.580


<r2> (average value of r2) Å2
<r2> 42.588
(<r2>)1/2 6.526