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

using model chemistry: B3LYP/LANL2DZ

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 B3LYP/LANL2DZ
 hartrees
Energy at 0K-52.396035
Energy at 298.15K-52.399813
HF Energy-52.396035
Nuclear repulsion energy20.506452
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 B3LYP/LANL2DZ
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' 3194 3070 7.51      
2 A' 1373 1320 18.38      
3 A' 642 617 22.61      
4 A' 280 269 169.58      
5 A" 3378 3247 2.23      
6 A" 930 894 5.18      

Unscaled Zero Point Vibrational Energy (zpe) 4898.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 4708.3 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 B3LYP/LANL2DZ
ABC
9.02528 0.35096 0.33783

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.547 0.000
Br2 0.000 -0.382 0.000
H3 -0.000 2.041 0.963
H4 -0.000 2.041 -0.963

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.92901.08211.0821
Br21.92902.60742.6074
H31.08212.60741.9253
H41.08212.60741.9253

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 117.175 Br2 C1 H4 117.175
H3 C1 H4 125.650
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.562      
2 Br 0.034      
3 H 0.264      
4 H 0.264      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.000 1.203 0.000 1.203
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.566 -0.001 0.000
y -0.001 -18.415 0.000
z 0.000 0.000 -21.142
Traceless
 xyz
x -3.787 -0.001 0.000
y -0.001 3.939 0.000
z 0.000 0.000 -0.151
Polar
3z2-r2-0.303
x2-y2-5.151
xy-0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.979 0.000 0.000
y 0.000 5.600 0.000
z 0.000 0.000 1.775


<r2> (average value of r2) Å2
<r2> 38.712
(<r2>)1/2 6.222

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-52.396032
Energy at 298.15K 
HF Energy-52.396032
Nuclear repulsion energy20.505265
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 B3LYP/LANL2DZ
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 3192 3068 7.51 126.61 0.13 0.22
2 A1 1372 1319 18.40 0.38 0.68 0.81
3 A1 642 617 22.64 14.78 0.39 0.56
4 B1 278 267 169.61 0.41 0.75 0.86
5 B2 3376 3245 2.21 46.05 0.75 0.86
6 B2 930 894 5.17 5.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4895.0 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 4705.0 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 B3LYP/LANL2DZ
ABC
9.02244 0.35092 0.33778

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.547
Br2 0.000 0.000 0.382
H3 0.000 0.963 -2.041
H4 0.000 -0.963 -2.041

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.92921.08211.0821
Br21.92922.60742.6074
H31.08212.60741.9256
H41.08212.60741.9256

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 117.160 Br2 C1 H4 117.160
H3 C1 H4 125.680
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.562      
2 Br 0.034      
3 H 0.264      
4 H 0.264      


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 -1.204 1.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.566 0.000 0.000
y 0.000 -21.141 0.000
z 0.000 0.000 -18.415
Traceless
 xyz
x -3.788 0.000 0.000
y 0.000 -0.150 0.000
z 0.000 0.000 3.939
Polar
3z2-r27.877
x2-y2-2.425
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.979 0.000 0.000
y 0.000 1.776 0.000
z 0.000 0.000 5.600


<r2> (average value of r2) Å2
<r2> 38.714
(<r2>)1/2 6.222