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

using model chemistry: BLYP/TZVP

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/TZVP
 hartrees
Energy at 0K-7760.576959
Energy at 298.15K 
HF Energy-7760.576959
Nuclear repulsion energy767.973422
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/TZVP
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 321 320 1.87 19.35 0.03 0.07
2 A1 232 232 0.47 8.33 0.18 0.31
3 E 663 661 185.58 3.14 0.75 0.86
3 E 663 661 185.60 3.14 0.75 0.86
4 E 149 149 0.20 5.09 0.75 0.86
4 E 149 149 0.20 5.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1088.5 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 1085.8 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/TZVP
ABC
0.03979 0.03979 0.01997

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.341
Br2 0.000 1.888 -0.020
Br3 1.635 -0.944 -0.020
Br4 -1.635 -0.944 -0.020

Atom - Atom Distances (Å)
  C1 Br2 Br3 Br4
C11.92261.92261.9226
Br21.92263.27083.2708
Br31.92263.27083.2708
Br41.92263.27083.2708

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 116.560 Br2 C1 Br4 116.560
Br3 C1 Br4 116.560
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.111      
2 Br 0.037      
3 Br 0.037      
4 Br 0.037      


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
Primitive
 xyz
x -58.297 0.000 0.000
y 0.000 -58.297 0.000
z 0.000 0.000 -61.565
Traceless
 xyz
x 1.634 0.000 0.000
y 0.000 1.634 0.000
z 0.000 0.000 -3.268
Polar
3z2-r2-6.537
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 12.450 0.000 0.000
y 0.000 12.450 0.000
z 0.000 0.000 5.535


<r2> (average value of r2) Å2
<r2> 412.267
(<r2>)1/2 20.304