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All results from a given calculation for CHBr2 (dibromomethyl radical)

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-5189.529259
Energy at 298.15K 
HF Energy-5189.529259
Nuclear repulsion energy335.339449
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 B97D3/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3150 3109 0.44 93.48 0.23 0.37
2 A' 612 604 8.40 4.71 0.10 0.18
3 A' 429 423 18.25 15.67 0.11 0.19
4 A' 181 179 0.05 3.65 0.38 0.55
5 A" 1149 1135 50.42 0.14 0.75 0.86
6 A" 720 710 143.03 1.32 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3120.0 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 3079.5 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 B97D3/6-311+G(3df,2p)
ABC
1.27395 0.04034 0.03914

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 0.834 0.000
H2 -0.524 1.779 0.000
Br3 0.007 -0.097 1.627
Br4 0.007 -0.097 -1.627

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.08361.87441.8744
H21.08362.53902.5390
Br31.87442.53903.2535
Br41.87442.53903.2535

picture of dibromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 115.664 H2 C1 Br4 115.664
Br3 C1 Br4 120.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.237      
2 H 0.180      
3 Br 0.029      
4 Br 0.029      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.431 0.594 0.000 0.734
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.236 -0.971 0.000
y -0.971 -40.755 0.000
z 0.000 0.000 -41.326
Traceless
 xyz
x -2.196 -0.971 0.000
y -0.971 1.526 0.000
z 0.000 0.000 0.669
Polar
3z2-r21.339
x2-y2-2.481
xy-0.971
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.440 -0.052 0.000
y -0.052 7.313 0.000
z 0.000 0.000 12.338


<r2> (average value of r2) Å2
<r2> 219.608
(<r2>)1/2 14.819