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

using model chemistry: wB97X-D/cc-pVQZ

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 wB97X-D/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at wB97X-D/cc-pVQZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVQZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at wB97X-D/cc-pVQZ
 hartrees
Energy at 0K-2613.509708
Energy at 298.15K 
HF Energy-2613.509708
Nuclear repulsion energy81.136732
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 wB97X-D/cc-pVQZ
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 3186 3186 4.57 117.75 0.09 0.16
2 A1 1394 1394 15.03 0.90 0.29 0.45
3 A1 727 727 16.83 9.34 0.13 0.24
4 B1 186 186 65.67 0.27 0.75 0.86
5 B2 3339 3339 0.85 52.85 0.75 0.86
6 B2 934 934 0.92 1.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4882.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4882.8 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 wB97X-D/cc-pVQZ
ABC
9.26450 0.38248 0.36732

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.476
Br2 0.000 0.000 0.366
H3 0.000 0.950 -1.980
H4 0.000 -0.950 -1.980

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.84231.07541.0754
Br21.84232.53122.5312
H31.07542.53121.9002
H41.07542.53121.9002

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 117.935 Br2 C1 H4 117.935
H3 C1 H4 124.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.192      
2 Br 0.015      
3 H 0.088      
4 H 0.088      


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 -1.001 1.001
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.312 0.000 0.000
y 0.000 -24.323 0.000
z 0.000 0.000 -21.870
Traceless
 xyz
x -3.215 0.000 0.000
y 0.000 -0.232 0.000
z 0.000 0.000 3.447
Polar
3z2-r26.894
x2-y2-1.989
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.803 0.000 0.000
y 0.000 4.114 0.000
z 0.000 0.000 6.444


<r2> (average value of r2) Å2
<r2> 42.508
(<r2>)1/2 6.520