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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-2610.544030
Energy at 298.15K-2610.547534
HF Energy-2610.544030
Nuclear repulsion energy80.857998
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3218 3071 4.26      
2 A' 1401 1337 20.13      
3 A' 720 687 18.99      
4 A' 74 70 77.64      
5 A" 3379 3224 0.23      
6 A" 938 895 1.66      

Unscaled Zero Point Vibrational Energy (zpe) 4864.6 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 4642.3 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 HSEh1PBE/6-31G**
ABC
9.16343 0.37995 0.36486

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.002 1.482 0.000
Br2 -0.002 -0.367 0.000
H3 0.039 1.984 0.955
H4 0.039 1.984 -0.955

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.84901.07931.0793
Br21.84902.53762.5376
H31.07932.53761.9093
H41.07932.53761.9093

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 117.707 Br2 C1 H4 117.707
H3 C1 H4 124.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.289      
2 Br -0.061      
3 H 0.175      
4 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.074 1.054 0.000 1.057
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.938 0.158 0.000
y 0.158 -21.265 0.000
z 0.000 0.000 -23.996
Traceless
 xyz
x -3.307 0.158 0.000
y 0.158 3.702 0.000
z 0.000 0.000 -0.394
Polar
3z2-r2-0.788
x2-y2-4.673
xy0.158
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.405 0.019 0.000
y 0.019 5.411 0.000
z 0.000 0.000 3.179


<r2> (average value of r2) Å2
<r2> 42.413
(<r2>)1/2 6.513

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HSEh1PBE/6-31G**
 hartrees
Energy at 0K-2610.544024
Energy at 298.15K 
HF Energy-2610.544024
Nuclear repulsion energy80.864767
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/6-31G**
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 3217 3070 4.13 108.97 0.12 0.21
2 A1 1401 1337 20.14 2.57 0.65 0.79
3 A1 715 683 18.90 8.07 0.22 0.36
4 B1 62i 59i 78.65 0.47 0.75 0.86
5 B2 3378 3224 0.25 57.56 0.75 0.86
6 B2 937 894 1.67 4.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4793.3 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 4574.3 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 HSEh1PBE/6-31G**
ABC
9.17205 0.38001 0.36489

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.481
Br2 0.000 0.000 0.367
H3 0.000 0.955 -1.984
H4 0.000 -0.955 -1.984

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.84881.07921.0792
Br21.84882.53812.5381
H31.07922.53811.9098
H41.07922.53811.9098

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 117.770 Br2 C1 H4 117.770
H3 C1 H4 124.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.289      
2 Br -0.061      
3 H 0.175      
4 H 0.175      


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 -1.055 1.055
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.942 0.000 0.000
y 0.000 -23.993 0.000
z 0.000 0.000 -21.258
Traceless
 xyz
x -3.316 0.000 0.000
y 0.000 -0.393 0.000
z 0.000 0.000 3.709
Polar
3z2-r27.418
x2-y2-1.949
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.402 0.000 0.000
y 0.000 3.175 0.000
z 0.000 0.000 5.410


<r2> (average value of r2) Å2
<r2> 42.411
(<r2>)1/2 6.512