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

using model chemistry: M06-2X/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 M06-2X/6-31G*
 hartrees
Energy at 0K-5182.166181
Energy at 298.15K 
HF Energy-5182.166181
Nuclear repulsion energy339.549458
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 M06-2X/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' 3271 3097 1.77 105.30 0.25 0.40
2 A' 642 608 11.78 5.39 0.31 0.48
3 A' 464 440 19.96 8.25 0.06 0.11
4 A' 196 186 0.05 3.24 0.48 0.65
5 A" 1204 1140 59.24 3.07 0.75 0.86
6 A" 776 735 132.59 1.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3275.9 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 3102.3 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 M06-2X/6-31G*
ABC
1.24216 0.04164 0.04034

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 0.847 0.000
H2 -0.530 1.786 0.000
Br3 0.007 -0.098 1.601
Br4 0.007 -0.098 -1.601

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.08131.85941.8594
H21.08132.53032.5303
Br31.85942.53033.2020
Br41.85942.53033.2020

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 116.202 H2 C1 Br4 116.202
Br3 C1 Br4 118.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.181      
2 H 0.237      
3 Br -0.028      
4 Br -0.028      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.502 0.729 0.000 0.885
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.072 -1.016 0.000
y -1.016 -40.289 0.000
z 0.000 0.000 -41.243
Traceless
 xyz
x -2.306 -1.016 0.000
y -1.016 1.868 0.000
z 0.000 0.000 0.438
Polar
3z2-r20.875
x2-y2-2.783
xy-1.016
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.963 -0.199 0.000
y -0.199 5.227 0.000
z 0.000 0.000 9.356


<r2> (average value of r2) Å2
<r2> 213.830
(<r2>)1/2 14.623