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

using model chemistry: M06-2X/3-21G*

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/3-21G*
 hartrees
Energy at 0K-5162.542410
Energy at 298.15K 
HF Energy-5162.542410
Nuclear repulsion energy337.663413
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/3-21G*
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' 3240 3069 1.31 93.28 0.26 0.41
2 A' 623 590 7.61 5.62 0.28 0.43
3 A' 295 279 41.12 4.83 0.09 0.16
4 A' 182 173 0.94 3.09 0.60 0.75
5 A" 1220 1156 57.18 2.97 0.75 0.86
6 A" 804 762 111.74 0.94 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3182.4 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 3014.4 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/3-21G*
ABC
1.24476 0.04111 0.03982

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.005 0.841 0.000
H2 -0.397 1.845 0.000
Br3 0.005 -0.098 1.612
Br4 0.005 -0.098 -1.612

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.08071.86571.8657
H21.08072.55632.5563
Br31.86572.55633.2233
Br41.86572.55633.2233

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 117.880 H2 C1 Br4 117.880
Br3 C1 Br4 119.498
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 H 0.266      
3 Br 0.029      
4 Br 0.029      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.441 0.578 0.000 0.727
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.223 -0.879 0.000
y -0.879 -40.067 0.000
z 0.000 0.000 -40.275
Traceless
 xyz
x -3.052 -0.879 0.000
y -0.879 1.682 0.000
z 0.000 0.000 1.370
Polar
3z2-r22.739
x2-y2-3.156
xy-0.879
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.310 -0.158 0.000
y -0.158 4.757 0.000
z 0.000 0.000 9.011


<r2> (average value of r2) Å2
<r2> 216.037
(<r2>)1/2 14.698