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All results from a given calculation for CH2Br (bromomethyl radical)

using model chemistry: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-2607.930632
Energy at 298.15K-2607.934464
HF Energy-2607.930632
Nuclear repulsion energy81.587877
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 LSDA/6-31+G**
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' 3126 3079 1.21      
2 A' 1340 1320 8.50      
3 A' 738 727 14.07      
4 A' 286 282 108.91      
5 A" 3282 3233 2.63      
6 A" 919 905 3.19      

Unscaled Zero Point Vibrational Energy (zpe) 4845.2 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 4772.5 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 LSDA/6-31+G**
ABC
9.00927 0.38824 0.37220

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.464 0.000
Br2 0.000 -0.364 0.000
H3 -0.001 1.972 0.963
H4 -0.001 1.972 -0.963

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.82711.08941.0894
Br21.82712.52642.5264
H31.08942.52641.9270
H41.08942.52641.9270

picture of bromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.818 Br2 C1 H4 117.818
H3 C1 H4 124.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.348      
2 Br -0.055      
3 H 0.202      
4 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.002 0.755 0.000 0.755
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.800 -0.005 0.000
y -0.005 -22.353 0.000
z 0.000 0.000 -24.463
Traceless
 xyz
x -3.391 -0.005 0.000
y -0.005 3.278 0.000
z 0.000 0.000 0.113
Polar
3z2-r20.226
x2-y2-4.446
xy-0.005
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.468 0.000 0.000
y 0.000 6.295 0.000
z 0.000 0.000 3.637


<r2> (average value of r2) Å2
<r2> 42.438
(<r2>)1/2 6.514