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

using model chemistry: PBEPBEultrafine/cc-pVDZ

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

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PBEPBEultrafine/cc-pVDZ
 hartrees
Energy at 0K-2612.925490
Energy at 298.15K 
HF Energy-2612.925490
Nuclear repulsion energy80.253250
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 PBEPBEultrafine/cc-pVDZ
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 3101 3083 2.85 127.20 0.12 0.21
2 A1 1304 1297 14.73 2.20 0.67 0.81
3 A1 702 698 17.61 9.78 0.25 0.40
4 B1 116i 116i 73.62 0.12 0.75 0.86
5 B2 3266 3247 0.64 63.94 0.75 0.86
6 B2 887 882 1.67 4.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4572.0 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 4545.5 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 PBEPBEultrafine/cc-pVDZ
ABC
8.85965 0.37499 0.35976

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.491
Br2 0.000 0.000 0.370
H3 0.000 0.972 -1.999
H4 0.000 -0.972 -1.999

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.86091.09621.0962
Br21.86092.56002.5600
H31.09622.56001.9432
H41.09622.56001.9432

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 117.582 Br2 C1 H4 117.582
H3 C1 H4 124.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.179      
2 Br -0.002      
3 H 0.091      
4 H 0.091      


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 -0.764 0.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.035 0.000 0.000
y 0.000 -24.106 0.000
z 0.000 0.000 -21.805
Traceless
 xyz
x -3.079 0.000 0.000
y 0.000 -0.186 0.000
z 0.000 0.000 3.265
Polar
3z2-r26.530
x2-y2-1.929
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.155 0.000 0.000
y 0.000 2.912 0.000
z 0.000 0.000 5.695


<r2> (average value of r2) Å2
<r2> 42.982
(<r2>)1/2 6.556