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

using model chemistry: HF/Def2TZVPP

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 HF/Def2TZVPP
 hartrees
Energy at 0K-2611.413066
Energy at 298.15K-2611.417050
HF Energy-2611.413066
Nuclear repulsion energy80.361824
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 HF/Def2TZVPP
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' 3301 2992 9.35      
2 A' 1493 1353 30.07      
3 A' 719 652 20.24      
4 A' 409 371 46.66      
5 A" 3453 3130 0.09      
6 A" 999 906 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 5187.2 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 4701.7 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 HF/Def2TZVPP
ABC
9.26383 0.37396 0.36014

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 1.498 0.000
Br2 -0.009 -0.370 0.000
H3 0.174 1.976 0.938
H4 0.174 1.976 -0.938

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86751.06871.0687
Br21.86752.53302.5330
H31.06872.53301.8759
H41.06872.53301.8759

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 116.591 Br2 C1 H4 116.591
H3 C1 H4 122.734
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.122      
2 Br -0.058      
3 H 0.090      
4 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.263 1.462 0.000 1.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.457 0.598 0.000
y 0.598 -21.650 0.000
z 0.000 0.000 -24.610
Traceless
 xyz
x -3.327 0.598 0.000
y 0.598 3.883 0.000
z 0.000 0.000 -0.556
Polar
3z2-r2-1.112
x2-y2-4.807
xy0.598
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.377 0.041 0.000
y 0.041 5.837 0.000
z 0.000 0.000 3.708


<r2> (average value of r2) Å2
<r2> 43.024
(<r2>)1/2 6.559

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-2611.412933
Energy at 298.15K 
HF Energy-2611.412933
Nuclear repulsion energy80.471387
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 HF/Def2TZVPP
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 3311 3001 7.56 118.59 0.10 0.18
2 A1 1491 1351 32.30 0.38 0.28 0.43
3 A1 723 655 18.04 12.73 0.22 0.36
4 B1 299i 271i 58.13 0.00 0.75 0.86
5 B2 3469 3145 0.52 53.81 0.75 0.86
6 B2 989 896 0.66 1.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4841.6 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 4388.5 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 HF/Def2TZVPP
ABC
9.38833 0.37506 0.36066

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.493
Br2 0.000 0.000 0.370
H3 0.000 0.944 -1.991
H4 0.000 -0.944 -1.991

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86241.06711.0671
Br21.86242.54212.5421
H31.06712.54211.8877
H41.06712.54211.8877

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 117.815 Br2 C1 H4 117.815
H3 C1 H4 124.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.123      
2 Br -0.052      
3 H 0.087      
4 H 0.087      


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 -1.459 1.459
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.528 0.000 0.000
y 0.000 -24.555 0.000
z 0.000 0.000 -21.572
Traceless
 xyz
x -3.465 0.000 0.000
y 0.000 -0.505 0.000
z 0.000 0.000 3.970
Polar
3z2-r27.940
x2-y2-1.973
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.365 0.000 0.000
y 0.000 3.688 0.000
z 0.000 0.000 5.806


<r2> (average value of r2) Å2
<r2> 42.986
(<r2>)1/2 6.556