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

using model chemistry: BLYP/cc-pVTZ-PP

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

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at BLYP/cc-pVTZ-PP
 hartrees
Energy at 0K-456.054606
Energy at 298.15K 
HF Energy-456.054606
Nuclear repulsion energy58.760156
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 BLYP/cc-pVTZ-PP
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 3096 3096 4.62 123.85 0.11 0.20
2 A1 1338 1338 19.77 0.77 0.65 0.79
3 A1 665 665 15.73 13.00 0.19 0.32
4 B1 42i 42i 68.73 0.02 0.75 0.86
5 B2 3251 3251 0.07 58.83 0.75 0.86
6 B2 896 896 1.36 2.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4602.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4602.1 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 BLYP/cc-pVTZ-PP
ABC
9.08351 0.36942 0.35498

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ-PP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.505
Br2 0.000 0.000 0.372
H3 0.000 0.960 -2.003
H4 0.000 -0.960 -2.003

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.87711.08141.0814
Br21.87712.56232.5623
H31.08142.56231.9191
H41.08142.56231.9191

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 117.461 Br2 C1 H4 117.461
H3 C1 H4 125.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.283      
2 Br 0.026      
3 H 0.128      
4 H 0.128      


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 -0.763 0.763
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.211 0.000 0.000
y 0.000 -24.284 0.000
z 0.000 0.000 -21.968
Traceless
 xyz
x -3.085 0.000 0.000
y 0.000 -0.194 0.000
z 0.000 0.000 3.279
Polar
3z2-r26.558
x2-y2-1.928
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.260 0.000 0.000
y 0.000 3.778 0.000
z 0.000 0.000 6.457


<r2> (average value of r2) Å2
<r2> 42.008
(<r2>)1/2 6.481