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

using model chemistry: BLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 2A'
1 2 yes C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at BLYP/TZVP
 hartrees
Energy at 0K-2613.414018
Energy at 298.15K-2613.417593
HF Energy-2613.414018
Nuclear repulsion energy79.652356
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 BLYP/TZVP
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' 3102 3094 4.12      
2 A' 1347 1344 18.86      
3 A' 665 663 18.42      
4 A' 132 131 93.54      
5 A" 3260 3251 0.05      
6 A" 905 903 2.51      

Unscaled Zero Point Vibrational Energy (zpe) 4705.0 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 4693.3 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 BLYP/TZVP
ABC
9.05983 0.36796 0.35360

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.000 1.508 0.000
Br2 -0.000 -0.373 0.000
H3 0.000 2.007 0.961
H4 0.000 2.007 -0.961

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.88091.08281.0828
Br21.88092.56682.5668
H31.08282.56681.9216
H41.08282.56681.9216

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 117.461 Br2 C1 H4 117.461
H3 C1 H4 125.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.313      
2 Br -0.009      
3 H 0.161      
4 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.001 0.847 0.000 0.847
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.742 0.001 0.000
y 0.001 -22.265 0.000
z 0.000 0.000 -24.642
Traceless
 xyz
x -3.289 0.001 0.000
y 0.001 3.427 0.000
z 0.000 0.000 -0.138
Polar
3z2-r2-0.275
x2-y2-4.477
xy0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.844 0.000 0.000
y 0.000 6.369 0.000
z 0.000 0.000 3.232


<r2> (average value of r2) Å2
<r2> 43.750
(<r2>)1/2 6.614

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at BLYP/TZVP
 hartrees
Energy at 0K-2613.414025
Energy at 298.15K 
HF Energy-2613.414025
Nuclear repulsion energy79.629761
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 BLYP/TZVP
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 3101 3093 4.07 124.60 0.13 0.23
2 A1 1346 1343 18.89 0.50 0.75 0.86
3 A1 658 656 18.52 11.80 0.30 0.46
4 B1 125 125 93.56 0.32 0.75 0.86
5 B2 3258 3250 0.06 62.60 0.75 0.86
6 B2 905 902 2.52 2.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4696.0 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 4684.3 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 BLYP/TZVP
ABC
9.05730 0.36773 0.35339

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.508
Br2 0.000 0.000 0.373
H3 0.000 0.961 -2.007
H4 0.000 -0.961 -2.007

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.88161.08281.0828
Br21.88162.56722.5672
H31.08282.56721.9219
H41.08282.56721.9219

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 117.443 Br2 C1 H4 117.443
H3 C1 H4 125.115
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.313      
2 Br -0.009      
3 H 0.161      
4 H 0.161      


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 -0.849 0.849
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.744 0.000 0.000
y 0.000 -24.641 0.000
z 0.000 0.000 -22.262
Traceless
 xyz
x -3.292 0.000 0.000
y 0.000 -0.138 0.000
z 0.000 0.000 3.430
Polar
3z2-r26.860
x2-y2-2.102
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.844 0.000 0.000
y 0.000 3.232 0.000
z 0.000 0.000 6.371


<r2> (average value of r2) Å2
<r2> 43.765
(<r2>)1/2 6.616