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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: wB97X-D/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/aug-cc-pVTZ
 hartrees
Energy at 0K-5187.829925
Energy at 298.15K 
HF Energy-5187.829925
Nuclear repulsion energy352.201275
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/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 A1 3151 3014 1.17 91.74 0.05 0.09
2 A1 1449 1387 0.06 9.99 0.50 0.67
3 A1 601 575 3.49 18.72 0.06 0.12
4 A1 174 167 0.09 3.30 0.32 0.48
5 A2 1134 1085 0.00 0.96 0.75 0.86
6 B1 3235 3094 2.70 42.19 0.75 0.86
7 B1 826 790 3.67 0.28 0.75 0.86
8 B2 1235 1182 61.94 0.38 0.75 0.86
9 B2 682 653 84.24 4.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6243.8 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 5972.8 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/aug-cc-pVTZ
ABC
0.88762 0.04085 0.03935

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.930
H2 -0.895 0.000 1.536
H3 0.895 0.000 1.536
Br4 0.000 1.614 -0.124
Br5 0.000 -1.614 -0.124

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.08131.08131.92711.9271
H21.08131.79092.48192.4819
H31.08131.79092.48192.4819
Br41.92712.48192.48193.2275
Br51.92712.48192.48193.2275

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 111.812 H2 C1 Br4 107.841
H2 C1 Br5 107.841 H3 C1 Br4 107.841
H3 C1 Br5 107.841 Br4 C1 Br5 113.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.511      
2 H 0.248      
3 H 0.248      
4 Br 0.008      
5 Br 0.008      


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 1.492 1.492
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.174 0.000 0.000
y 0.000 -44.568 0.000
z 0.000 0.000 -40.727
Traceless
 xyz
x -0.527 0.000 0.000
y 0.000 -2.617 0.000
z 0.000 0.000 3.144
Polar
3z2-r26.288
x2-y21.394
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.957 0.000 0.000
y 0.000 11.235 0.000
z 0.000 0.000 7.591


<r2> (average value of r2) Å2
<r2> 221.617
(<r2>)1/2 14.887