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

using model chemistry: B97D3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-7764.356819
Energy at 298.15K 
HF Energy-7764.356819
Nuclear repulsion energy774.118202
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 B97D3/6-311G**
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 331 326 1.76 19.64 0.02 0.04
2 A1 239 235 0.44 7.63 0.20 0.33
3 E 684 675 190.41 1.78 0.75 0.86
3 E 684 675 190.39 1.78 0.75 0.86
4 E 155 152 0.18 4.65 0.75 0.86
4 E 155 152 0.18 4.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1123.6 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 1107.6 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 B97D3/6-311G**
ABC
0.04043 0.04043 0.02029

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.340
Br2 0.000 1.873 -0.019
Br3 1.622 -0.937 -0.019
Br4 -1.622 -0.937 -0.019

Atom - Atom Distances (Å)
  C1 Br2 Br3 Br4
C11.90751.90751.9075
Br21.90753.24483.2448
Br31.90753.24483.2448
Br41.90753.24483.2448

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 116.537 Br2 C1 Br4 116.537
Br3 C1 Br4 116.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.346      
2 Br 0.115      
3 Br 0.115      
4 Br 0.115      


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 -0.380 0.380
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.450 0.000 0.000
y 0.000 -57.450 0.000
z 0.000 0.000 -60.699
Traceless
 xyz
x 1.625 0.000 0.000
y 0.000 1.625 0.000
z 0.000 0.000 -3.249
Polar
3z2-r2-6.498
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.476 0.000 0.000
y 0.000 11.476 0.000
z 0.000 0.000 4.646


<r2> (average value of r2) Å2
<r2> 405.787
(<r2>)1/2 20.144