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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-7753.674055
Energy at 298.15K 
HF Energy-7753.674055
Nuclear repulsion energy781.637308
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 BLYP/6-31G(2df,p)
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 306 305 0.91 19.10 0.05 0.10
2 A1 241 240 0.57 2.21 0.14 0.24
3 E 725 721 136.50 1.06 0.75 0.86
3 E 725 721 136.50 1.06 0.75 0.86
4 E 155 155 0.01 2.72 0.75 0.86
4 E 155 155 0.01 2.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1154.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 1147.6 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 BLYP/6-31G(2df,p)
ABC
0.04120 0.04120 0.02067

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.317
Br2 0.000 1.856 -0.018
Br3 1.608 -0.928 -0.018
Br4 -1.608 -0.928 -0.018

Atom - Atom Distances (Å)
  C1 Br2 Br3 Br4
C11.88621.88621.8862
Br21.88623.21503.2150
Br31.88623.21503.2150
Br41.88623.21503.2150

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 116.918 Br2 C1 Br4 116.918
Br3 C1 Br4 116.918
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.359      
2 Br 0.120      
3 Br 0.120      
4 Br 0.120      


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 -0.220 0.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.418 0.000 0.000
y 0.000 -57.418 0.000
z 0.000 0.000 -59.861
Traceless
 xyz
x 1.222 0.000 0.000
y 0.000 1.222 0.000
z 0.000 0.000 -2.443
Polar
3z2-r2-4.886
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 12.688 0.000 0.000
y 0.000 12.688 -0.000
z 0.000 -0.000 6.970


<r2> (average value of r2) Å2
<r2> 398.782
(<r2>)1/2 19.970