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

using model chemistry: B3LYPultrafine/Def2TZVPP

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 B3LYPultrafine/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at B3LYPultrafine/Def2TZVPP
See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/Def2TZVPP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3LYPultrafine/Def2TZVPP
 hartrees
Energy at 0K-2613.444497
Energy at 298.15K 
HF Energy-2613.444497
Nuclear repulsion energy80.625882
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 B3LYPultrafine/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3173 3173 4.12 120.25 0.11 0.20
2 A1 1383 1383 17.80 0.49 0.65 0.79
3 A1 699 699 17.28 10.24 0.19 0.32
4 B1 167 167 69.94 0.33 0.75 0.86
5 B2 3329 3329 0.61 56.52 0.75 0.86
6 B2 928 928 1.21 1.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4839.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4839.4 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 B3LYPultrafine/Def2TZVPP
ABC
9.23004 0.37729 0.36248

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.488
Br2 0.000 0.000 0.369
H3 0.000 0.952 -1.988
H4 0.000 -0.952 -1.988

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85611.07561.0756
Br21.85612.54182.5418
H31.07562.54181.9038
H41.07562.54181.9038

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 117.745 Br2 C1 H4 117.745
H3 C1 H4 124.510
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.256      
2 Br -0.003      
3 H 0.129      
4 H 0.129      


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 -0.963 0.963
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.474 0.000 0.000
y 0.000 -24.500 0.000
z 0.000 0.000 -22.110
Traceless
 xyz
x -3.169 0.000 0.000
y 0.000 -0.208 0.000
z 0.000 0.000 3.377
Polar
3z2-r26.754
x2-y2-1.974
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.533 0.000 0.000
y 0.000 3.838 0.000
z 0.000 0.000 6.380


<r2> (average value of r2) Å2
<r2> 42.966
(<r2>)1/2 6.555