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

using model chemistry: B97D3/6-311+G(3df,2p)

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 B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-2614.681095
Energy at 298.15K-2614.684518
HF Energy-2614.681095
Nuclear repulsion energy80.477977
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 B97D3/6-311+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 A' 3116 3076 5.79      
2 A' 1350 1332 16.49      
3 A' 689 680 15.24      
4 A' 40 40 62.72      
5 A" 3274 3231 0.13      
6 A" 912 900 0.98      

Unscaled Zero Point Vibrational Energy (zpe) 4690.9 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 4629.9 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 B97D3/6-311+G(3df,2p)
ABC
9.12838 0.37616 0.36127

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.490 0.000
Br2 0.000 -0.369 0.000
H3 -0.000 1.990 0.957
H4 -0.000 1.990 -0.957

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85921.07981.0798
Br21.85922.54582.5458
H31.07982.54581.9144
H41.07982.54581.9144

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 117.572 Br2 C1 H4 117.572
H3 C1 H4 124.855
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.318      
2 Br -0.024      
3 H 0.171      
4 H 0.171      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.001 0.919 0.000 0.919
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.394 -0.001 0.000
y -0.001 -22.036 0.000
z 0.000 0.000 -24.384
Traceless
 xyz
x -3.184 -0.001 0.000
y -0.001 3.353 0.000
z 0.000 0.000 -0.169
Polar
3z2-r2-0.338
x2-y2-4.358
xy-0.001
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.419 0.000 0.000
y 0.000 6.876 0.000
z 0.000 0.000 4.538


<r2> (average value of r2) Å2
<r2> 43.003
(<r2>)1/2 6.558

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-2614.681081
Energy at 298.15K 
HF Energy-2614.681081
Nuclear repulsion energy80.470233
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 B97D3/6-311+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 3118 3078 5.78 116.52 0.08 0.15
2 A1 1349 1332 16.43 1.17 0.21 0.35
3 A1 683 674 15.38 13.01 0.10 0.19
4 B1 49 48 62.69 1.66 0.75 0.86
5 B2 3275 3233 0.13 55.83 0.75 0.86
6 B2 912 901 0.98 0.84 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4693.5 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 4632.5 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 B97D3/6-311+G(3df,2p)
ABC
9.12553 0.37608 0.36120

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.490
Br2 0.000 0.000 0.369
H3 0.000 0.957 -1.990
H4 0.000 -0.957 -1.990

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85951.07981.0798
Br21.85952.54582.5458
H31.07982.54581.9147
H41.07982.54581.9147

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 117.553 Br2 C1 H4 117.553
H3 C1 H4 124.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.318      
2 Br -0.024      
3 H 0.171      
4 H 0.171      


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 -0.920 0.920
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.395 0.000 0.000
y 0.000 -24.383 0.000
z 0.000 0.000 -22.036
Traceless
 xyz
x -3.185 0.000 0.000
y 0.000 -0.168 0.000
z 0.000 0.000 3.353
Polar
3z2-r26.705
x2-y2-2.012
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.419 0.000 0.000
y 0.000 4.539 0.000
z 0.000 0.000 6.877


<r2> (average value of r2) Å2
<r2> 43.007
(<r2>)1/2 6.558