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

using model chemistry: PBEPBE/6-311G*

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 PBEPBE/6-311G*
 hartrees
Energy at 0K-2612.925520
Energy at 298.15K-2612.928959
HF Energy-2612.925520
Nuclear repulsion energy80.331255
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 PBEPBE/6-311G*
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' 3105 3073 6.98      
2 A' 1350 1336 15.65      
3 A' 703 695 16.87      
4 A' 47 46 96.65      
5 A" 3260 3226 0.18      
6 A" 915 905 3.38      

Unscaled Zero Point Vibrational Energy (zpe) 4689.6 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4640.9 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 PBEPBE/6-311G*
ABC
9.04958 0.37501 0.36011

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 1.491 0.000
Br2 -0.001 -0.370 0.000
H3 0.023 1.997 0.961
H4 0.023 1.997 -0.961

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86101.08651.0865
Br21.86102.55492.5549
H31.08652.55491.9222
H41.08652.55491.9222

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 117.763 Br2 C1 H4 117.763
H3 C1 H4 124.404
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.574      
2 Br 0.053      
3 H 0.261      
4 H 0.261      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.049 0.872 0.000 0.873
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.511 0.103 0.000
y 0.103 -21.892 0.000
z 0.000 0.000 -24.351
Traceless
 xyz
x -3.390 0.103 0.000
y 0.103 3.539 0.000
z 0.000 0.000 -0.149
Polar
3z2-r2-0.299
x2-y2-4.619
xy0.103
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.294 0.008 0.000
y 0.008 5.869 0.000
z 0.000 0.000 2.923


<r2> (average value of r2) Å2
<r2> 43.103
(<r2>)1/2 6.565

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-2612.925558
Energy at 298.15K 
HF Energy-2612.925558
Nuclear repulsion energy80.325821
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 PBEPBE/6-311G*
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 3104 3071 6.92 113.90 0.14 0.25
2 A1 1349 1335 15.65 1.25 0.71 0.83
3 A1 696 689 16.93 9.42 0.26 0.42
4 B1 41i 41i 97.04 0.00 0.75 0.86
5 B2 3259 3225 0.17 60.45 0.75 0.86
6 B2 914 905 3.39 4.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4640.2 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 4591.9 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 PBEPBE/6-311G*
ABC
9.04861 0.37497 0.36005

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.491
Br2 0.000 0.000 0.370
H3 0.000 0.961 -1.997
H4 0.000 -0.961 -1.997

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86121.08651.0865
Br21.86122.55512.5551
H31.08652.55511.9228
H41.08652.55511.9228

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 117.765 Br2 C1 H4 117.765
H3 C1 H4 124.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.574      
2 Br 0.053      
3 H 0.261      
4 H 0.261      


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 -0.873 0.873
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.513 0.000 0.000
y 0.000 -24.349 0.000
z 0.000 0.000 -21.889
Traceless
 xyz
x -3.394 0.000 0.000
y 0.000 -0.147 0.000
z 0.000 0.000 3.541
Polar
3z2-r27.083
x2-y2-2.164
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.293 0.000 0.000
y 0.000 2.923 0.000
z 0.000 0.000 5.869


<r2> (average value of r2) Å2
<r2> 43.106
(<r2>)1/2 6.566