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

using model chemistry: wB97X-D/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-5187.164854
Energy at 298.15K 
HF Energy-5187.164854
Nuclear repulsion energy338.949841
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/aug-cc-pVTZ
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' 3245 3104 1.23 88.11 0.21 0.35
2 A' 628 601 4.45 6.59 0.05 0.10
3 A' 370 354 25.38 5.94 0.11 0.20
4 A' 188 180 0.20 2.27 0.38 0.55
5 A" 1195 1143 61.61 0.17 0.75 0.86
6 A" 803 768 110.10 0.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3214.6 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 3075.1 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/aug-cc-pVTZ
ABC
1.30370 0.04121 0.03997

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.005 0.819 0.000
H2 -0.405 1.816 0.000
Br3 0.005 -0.096 1.610
Br4 0.005 -0.096 -1.610

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.07751.85181.8518
H21.07752.53262.5326
Br31.85182.53263.2194
Br41.85182.53263.2194

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 117.200 H2 C1 Br4 117.200
Br3 C1 Br4 120.751
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.655      
2 H 0.295      
3 Br 0.180      
4 Br 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.345 0.677 0.000 0.760
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.464 -0.799 0.000
y -0.799 -40.594 0.000
z 0.000 0.000 -41.340
Traceless
 xyz
x -2.497 -0.799 0.000
y -0.799 1.808 0.000
z 0.000 0.000 0.689
Polar
3z2-r21.378
x2-y2-2.870
xy-0.799
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.493 -0.045 0.000
y -0.045 7.309 0.000
z 0.000 0.000 11.623


<r2> (average value of r2) Å2
<r2> 215.624
(<r2>)1/2 14.684