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All results from a given calculation for CBr3 (tribromomethyl radical)

using model chemistry: TPSSh/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-7760.142982
Energy at 298.15K 
HF Energy-7760.142982
Nuclear repulsion energy780.298793
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 TPSSh/6-311G*
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 326 314 1.54 18.33 0.03 0.06
2 A1 242 233 0.87 2.72 0.37 0.54
3 E 745 717 170.06 1.16 0.75 0.86
3 E 745 717 170.05 1.16 0.75 0.86
4 E 157 151 0.02 4.15 0.75 0.86
4 E 157 151 0.02 4.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1185.6 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 1142.0 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 TPSSh/6-311G*
ABC
0.04105 0.04105 0.02059

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.307
Br2 0.000 1.860 -0.018
Br3 1.611 -0.930 -0.018
Br4 -1.611 -0.930 -0.018

Atom - Atom Distances (Å)
  C1 Br2 Br3 Br4
C11.88791.88791.8879
Br21.88793.22133.2213
Br31.88793.22133.2213
Br41.88793.22133.2213

picture of tribromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 117.113 Br2 C1 Br4 117.113
Br3 C1 Br4 117.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.366      
2 Br 0.122      
3 Br 0.122      
4 Br 0.122      


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 -0.343 0.343
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.976 0.000 0.000
y 0.000 10.976 0.000
z 0.000 0.000 4.563


<r2> (average value of r2) Å2
<r2> 400.489
(<r2>)1/2 20.012