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All results from a given calculation for CHBr2 (dibromomethyl radical)

using model chemistry: wB97X-D/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at wB97X-D/6-31G*
 hartrees
Energy at 0K-5182.081089
Energy at 298.15K 
HF Energy-5182.081089
Nuclear repulsion energy339.074711
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 wB97X-D/6-31G*
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' 3268 3100 1.22 95.66 0.28 0.44
2 A' 633 600 8.40 5.64 0.25 0.40
3 A' 420 398 28.05 8.99 0.10 0.18
4 A' 193 183 0.09 3.12 0.49 0.66
5 A" 1209 1146 60.58 2.43 0.75 0.86
6 A" 786 745 121.22 1.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3254.1 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 3086.5 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 wB97X-D/6-31G*
ABC
1.25586 0.04145 0.04016

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.006 0.840 0.000
H2 -0.480 1.807 0.000
Br3 0.006 -0.098 1.605
Br4 0.006 -0.098 -1.605

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.08211.85861.8586
H21.08212.53742.5374
Br31.85862.53743.2097
Br41.85862.53743.2097

picture of dibromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 116.787 H2 C1 Br4 116.787
Br3 C1 Br4 119.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.192      
2 H 0.240      
3 Br -0.024      
4 Br -0.024      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.473 0.701 0.000 0.846
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.865 -0.960 0.000
y -0.960 -39.952 0.000
z 0.000 0.000 -40.714
Traceless
 xyz
x -2.532 -0.960 0.000
y -0.960 1.837 0.000
z 0.000 0.000 0.695
Polar
3z2-r21.389
x2-y2-2.913
xy-0.960
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.954 -0.184 0.000
y -0.184 5.206 0.000
z 0.000 0.000 9.452


<r2> (average value of r2) Å2
<r2> 214.406
(<r2>)1/2 14.643