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All results from a given calculation for CHBr2 (dibromomethyl radical)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-5186.270553
Energy at 298.15K 
HF Energy-5186.034161
Nuclear repulsion energy338.513243
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 B2PLYP=FULLultrafine/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3258 3124 1.22 91.84 0.21 0.34
2 A' 627 602 5.44 5.90 0.07 0.14
3 A' 409 392 22.18 8.59 0.11 0.20
4 A' 187 179 0.09 2.66 0.38 0.55
5 A" 1191 1142 58.76 0.14 0.75 0.86
6 A" 782 750 119.82 0.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3226.8 cm-1
Scaled (by 0.9591) Zero Point Vibrational Energy (zpe) 3094.9 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 B2PLYP=FULLultrafine/aug-cc-pVTZ
ABC
1.29271 0.04113 0.03989

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.006 0.826 0.000
H2 -0.456 1.796 0.000
Br3 0.006 -0.096 1.611
Br4 0.006 -0.096 -1.611

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4
C11.07411.85641.8564
H21.07412.52752.5275
Br31.85642.52753.2223
Br41.85642.52753.2223

picture of dibromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 116.651 H2 C1 Br4 116.651
Br3 C1 Br4 120.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.672      
2 H 0.308      
3 Br 0.182      
4 Br 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.380 0.642 0.000 0.746
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.770 -0.878 0.001
y -0.878 -41.112 0.002
z 0.001 0.002 -41.849
Traceless
 xyz
x -2.290 -0.878 0.001
y -0.878 1.698 0.002
z 0.001 0.002 0.592
Polar
3z2-r21.183
x2-y2-2.658
xy-0.878
xz0.001
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.458 -0.045 -0.001
y -0.045 7.310 0.002
z -0.001 0.002 11.804


<r2> (average value of r2) Å2
<r2> 216.263
(<r2>)1/2 14.706