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

using model chemistry: B2PLYP=FULLultrafine/cc-pVDZ

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 B2PLYP=FULLultrafine/cc-pVDZ
 hartrees
Energy at 0K-2612.894839
Energy at 298.15K 
HF Energy-2612.808841
Nuclear repulsion energy80.326860
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 B2PLYP=FULLultrafine/cc-pVDZ
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' 3193 3060 5.14 124.07 0.12 0.21
2 A' 1378 1320 19.87 2.00 0.72 0.84
3 A' 710 680 20.72 8.54 0.26 0.41
4 A' 280 268 63.55 1.69 0.09 0.16
5 A" 3355 3214 0.42 62.47 0.75 0.86
6 A" 929 891 1.17 4.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4922.2 cm-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 4716.5 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 B2PLYP=FULLultrafine/cc-pVDZ
ABC
8.96560 0.37504 0.36041

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 1.492 0.000
Br2 -0.006 -0.370 0.000
H3 0.126 1.989 0.959
H4 0.126 1.989 -0.959

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86191.08781.0878
Br21.86192.54952.5495
H31.08782.54951.9175
H41.08782.54951.9175

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 117.173 Br2 C1 H4 117.173
H3 C1 H4 123.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.154      
2 Br -0.022      
3 H 0.088      
4 H 0.088      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.223 0.930 0.000 0.957
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.122 0.472 -0.001
y 0.472 -21.858 -0.014
z -0.001 -0.014 -24.301
Traceless
 xyz
x -3.043 0.472 -0.001
y 0.472 3.353 -0.014
z -0.001 -0.014 -0.311
Polar
3z2-r2-0.622
x2-y2-4.264
xy0.472
xz-0.001
yz-0.014


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.114 0.057 0.000
y 0.057 5.479 0.002
z 0.000 0.002 2.827


<r2> (average value of r2) Å2
<r2> 42.976
(<r2>)1/2 6.556

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B2PLYP=FULLultrafine/cc-pVDZ
 hartrees
Energy at 0K-2612.894801
Energy at 298.15K 
HF Energy-2612.808787
Nuclear repulsion energy80.380675
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 B2PLYP=FULLultrafine/cc-pVDZ
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 3200 3066 3.99 122.59 0.12 0.21
2 A1 1377 1319 20.60 1.44 0.72 0.84
3 A1 712 683 19.57 8.48 0.25 0.40
4 B1 202i 194i 70.99 0.21 0.75 0.86
5 B2 3365 3224 0.87 61.48 0.75 0.86
6 B2 924 885 1.27 4.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4687.8 cm-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 4491.8 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 B2PLYP=FULLultrafine/cc-pVDZ
ABC
9.03589 0.37558 0.36059

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVDZ

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 0.370
H3 0.000 0.962 -1.996
H4 0.000 -0.962 -1.996

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85961.08701.0870
Br21.85962.55372.5537
H31.08702.55371.9241
H41.08702.55371.9241

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 117.742 Br2 C1 H4 117.742
H3 C1 H4 124.516
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.156      
2 Br -0.020      
3 H 0.088      
4 H 0.088      


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 -0.933 0.933
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.163 0.000 0.000
y 0.000 -24.270 0.000
z 0.000 0.000 -21.831
Traceless
 xyz
x -3.112 0.000 0.000
y 0.000 -0.273 0.000
z 0.000 0.000 3.385
Polar
3z2-r26.770
x2-y2-1.893
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.098 0.000 0.000
y 0.000 2.822 0.000
z 0.000 0.000 5.465


<r2> (average value of r2) Å2
<r2> 42.959
(<r2>)1/2 6.554