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

using model chemistry: B2PLYP=FULLultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B2PLYP=FULLultrafine/cc-pVDZ
 hartrees
Energy at 0K-5186.001804
Energy at 298.15K 
HF Energy-5185.870436
Nuclear repulsion energy336.007968
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=FULLultrafine/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 A' 3236 3100 1.10 107.51 0.26 0.41
2 A' 631 605 10.68 5.88 0.43 0.60
3 A' 468 449 22.61 11.58 0.05 0.10
4 A' 187 179 0.06 4.47 0.54 0.70
5 A" 1177 1128 57.84 2.38 0.75 0.86
6 A" 772 740 133.06 1.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3235.3 cm-1
Scaled (by 0.9582) Zero Point Vibrational Energy (zpe) 3100.1 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=FULLultrafine/cc-pVDZ
ABC
1.25889 0.04059 0.03936

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 0.839 0.000
H2 -0.524 1.792 0.000
Br3 0.007 -0.098 1.622
Br4 0.007 -0.098 -1.622

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.09101.87261.8726
H21.09102.54592.5459
Br31.87262.54593.2434
Br41.87262.54593.2434

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 115.896 H2 C1 Br4 115.896
Br3 C1 Br4 119.996
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.185      
2 H 0.110      
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
  -0.502 0.581 0.000 0.767
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.206 -0.962 0.001
y -0.962 -40.661 0.007
z 0.001 0.007 -40.968
Traceless
 xyz
x -2.392 -0.962 0.001
y -0.962 1.426 0.007
z 0.001 0.007 0.966
Polar
3z2-r21.932
x2-y2-2.545
xy-0.962
xz0.001
yz0.007


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.268 -0.202 0.001
y -0.202 4.744 0.003
z 0.001 0.003 9.389


<r2> (average value of r2) Å2
<r2> 218.465
(<r2>)1/2 14.781