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

using model chemistry: B3LYP/6-311+G(3df,2p)

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 B3LYP/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at B3LYP/6-311+G(3df,2p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B3LYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-2613.409073
Energy at 298.15K 
HF Energy-2613.409073
Nuclear repulsion energy80.602668
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 B3LYP/6-311+G(3df,2p)
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 3167 3062 3.56 111.16 0.08 0.16
2 A1 1381 1335 17.05 1.11 0.19 0.31
3 A1 699 676 16.90 11.75 0.11 0.20
4 B1 154 149 65.87 1.48 0.75 0.86
5 B2 3323 3214 1.22 53.25 0.75 0.86
6 B2 927 897 0.95 0.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4825.1 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 4665.9 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 B3LYP/6-311+G(3df,2p)
ABC
9.22846 0.37705 0.36225

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

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
C11.85691.07531.0753
Br21.85692.54202.5420
H31.07532.54201.9040
H41.07532.54201.9040

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 117.715 Br2 C1 H4 117.715
H3 C1 H4 124.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.349      
2 Br -0.012      
3 H 0.181      
4 H 0.181      


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 -0.964 0.964
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.637 0.000 0.000
y 0.000 -24.595 0.000
z 0.000 0.000 -22.201
Traceless
 xyz
x -3.239 0.000 0.000
y 0.000 -0.175 0.000
z 0.000 0.000 3.415
Polar
3z2-r26.829
x2-y2-2.043
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.324 0.000 0.000
y 0.000 4.441 0.000
z 0.000 0.000 6.719


<r2> (average value of r2) Å2
<r2> 43.053
(<r2>)1/2 6.561