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

using model chemistry: B2PLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Vibrational Frequencies calculated at B2PLYP/STO-3G
Rotational Constants (cm-1) from geometry optimized at B2PLYP/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B2PLYP/STO-3G
 hartrees
Energy at 0K-2584.365990
Energy at 298.15K 
HF Energy-2584.349027
Nuclear repulsion energy80.101984
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/STO-3G
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 3427 3427 0.17 38.08 0.12 0.22
2 A1 1563 1563 33.62 8.05 0.75 0.86
3 A1 806 806 18.68 6.32 0.34 0.51
4 B1 383i 383i 40.74 0.48 0.75 0.86
5 B2 3617 3617 0.00 28.36 0.75 0.86
6 B2 1005 1005 1.22 4.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5017.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5017.2 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/STO-3G
ABC
9.27473 0.37217 0.35781

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.490
Br2 0.000 0.000 0.372
H3 0.000 0.950 -2.032
H4 0.000 -0.950 -2.032

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86211.09311.0931
Br21.86212.58422.5842
H31.09312.58421.8992
H41.09312.58421.8992

picture of bromomethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 119.687 Br2 C1 H4 119.687
H3 C1 H4 120.627
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.200      
2 Br 0.040      
3 H 0.080      
4 H 0.080      


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 -0.841 0.841
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.120 0.000 0.000
y 0.000 -22.226 0.000
z 0.000 0.000 -21.148
Traceless
 xyz
x -1.433 0.000 0.000
y 0.000 -0.092 0.000
z 0.000 0.000 1.525
Polar
3z2-r23.051
x2-y2-0.894
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.396 0.000 0.000
y 0.000 0.897 0.000
z 0.000 0.000 2.863


<r2> (average value of r2) Å2
<r2> 42.061
(<r2>)1/2 6.485