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

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

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at PBEPBE/aug-cc-pVTZ-PP
 hartrees
Energy at 0K-456.051628
Energy at 298.15K 
HF Energy-456.051628
Nuclear repulsion energy59.276546
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 PBEPBE/aug-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 3104 3104 3.65 132.76 0.08 0.14
2 A1 1328 1328 15.00 1.12 0.27 0.43
3 A1 696 696 14.23 12.34 0.09 0.17
4 B1 152 152 65.14 1.61 0.75 0.86
5 B2 3255 3255 0.84 58.42 0.75 0.86
6 B2 894 894 1.31 0.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4714.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4714.5 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 PBEPBE/aug-cc-pVTZ-PP
ABC
9.06011 0.37703 0.36197

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

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 0.961 -1.990
H4 0.000 -0.961 -1.990

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85651.08421.0842
Br21.85652.54702.5470
H31.08422.54701.9216
H41.08422.54701.9216

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 117.601 Br2 C1 H4 117.601
H3 C1 H4 124.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.834      
2 Br 0.220      
3 H 0.307      
4 H 0.307      


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 -0.768 0.768
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.350 0.000 0.000
y 0.000 -24.295 0.000
z 0.000 0.000 -22.060
Traceless
 xyz
x -3.173 0.000 0.000
y 0.000 -0.089 0.000
z 0.000 0.000 3.262
Polar
3z2-r26.525
x2-y2-2.056
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.718 0.000 0.000
y 0.000 4.858 0.000
z 0.000 0.000 7.195


<r2> (average value of r2) Å2
<r2> 41.584
(<r2>)1/2 6.449