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

using model chemistry: B2PLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B2PLYP/cc-pVDZ
 hartrees
Energy at 0K-7759.096480
Energy at 298.15K 
HF Energy-7758.926414
Nuclear repulsion energy779.530214
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 B2PLYP/cc-pVDZ
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 344 329 1.24 15.33 0.02 0.04
2 A1 246 235 0.65 3.04 0.31 0.47
3 E 763 731 152.10 0.43 0.75 0.86
3 E 763 731 152.11 0.43 0.75 0.86
4 E 160 154 0.01 3.66 0.75 0.86
4 E 160 154 0.01 3.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1218.3 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 1166.8 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 B2PLYP/cc-pVDZ
ABC
0.04098 0.04098 0.02056

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.320
Br2 0.000 1.861 -0.018
Br3 1.612 -0.931 -0.018
Br4 -1.612 -0.931 -0.018

Atom - Atom Distances (Å)
  C1 Br2 Br3 Br4
C11.89161.89161.8916
Br21.89163.22353.2235
Br31.89163.22353.2235
Br41.89163.22353.2235

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 116.870 Br2 C1 Br4 116.870
Br3 C1 Br4 116.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.263      
2 Br 0.088      
3 Br 0.088      
4 Br 0.088      


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 -0.338 0.338
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.511 0.000 0.000
y 0.000 -57.511 0.000
z 0.000 0.000 -60.848
Traceless
 xyz
x 1.669 0.000 0.000
y 0.000 1.669 0.000
z 0.000 0.000 -3.337
Polar
3z2-r2-6.675
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 10.286 0.000 0.000
y 0.000 10.286 0.000
z 0.000 0.000 4.349


<r2> (average value of r2) Å2
<r2> 400.954
(<r2>)1/2 20.024