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

using model chemistry: HF/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at HF/cc-pVTZ-PP
Rotational Constants (cm-1) from geometry optimized at HF/cc-pVTZ-PP
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVTZ-PP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HF/cc-pVTZ-PP
 hartrees
Energy at 0K-454.503416
Energy at 298.15K 
HF Energy-454.503416
Nuclear repulsion energy59.255766
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/cc-pVTZ-PP
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 3305 3305 8.24 118.35 0.10 0.18
2 A1 1486 1486 35.23 0.52 0.20 0.33
3 A1 721 721 17.72 14.23 0.21 0.34
4 B1 324i 324i 57.91 0.10 0.75 0.86
5 B2 3466 3466 0.41 52.64 0.75 0.86
6 B2 985 985 0.68 1.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4819.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4819.8 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 HF/cc-pVTZ-PP
ABC
9.37033 0.37506 0.36063

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVTZ-PP

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 0.945 -1.990
H4 0.000 -0.945 -1.990

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86271.06731.0673
Br21.86272.54132.5413
H31.06732.54131.8895
H41.06732.54131.8895

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 117.724 Br2 C1 H4 117.724
H3 C1 H4 124.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.252      
2 Br -0.055      
3 H 0.153      
4 H 0.153      


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 -1.398 1.398
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.166 0.000 0.000
y 0.000 -24.199 0.000
z 0.000 0.000 -21.217
Traceless
 xyz
x -3.458 0.000 0.000
y 0.000 -0.508 0.000
z 0.000 0.000 3.966
Polar
3z2-r27.932
x2-y2-1.966
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.104 0.000 0.000
y 0.000 3.549 0.000
z 0.000 0.000 5.663


<r2> (average value of r2) Å2
<r2> 41.395
(<r2>)1/2 6.434