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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: M06-2X/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/6-311+G(3df,2p)
 hartrees
Energy at 0K-5187.641250
Energy at 298.15K 
HF Energy-5187.641250
Nuclear repulsion energy352.704655
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 M06-2X/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 3156 3156 0.34 84.91 0.05 0.09
2 A1 1452 1452 0.04 9.35 0.51 0.67
3 A1 608 608 4.07 18.54 0.06 0.12
4 A1 177 177 0.10 3.34 0.35 0.52
5 A2 1139 1139 0.00 1.11 0.75 0.86
6 B1 3241 3241 4.80 40.61 0.75 0.86
7 B1 829 829 3.33 0.38 0.75 0.86
8 B2 1234 1234 61.97 0.25 0.75 0.86
9 B2 690 690 91.06 5.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6263.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6263.1 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 M06-2X/6-311+G(3df,2p)
ABC
0.88591 0.04100 0.03949

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.931
H2 -0.897 0.000 1.534
H3 0.897 0.000 1.534
Br4 0.000 1.611 -0.124
Br5 0.000 -1.611 -0.124

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.08071.08071.92551.9255
H21.08071.79402.47942.4794
H31.08071.79402.47942.4794
Br41.92552.47942.47943.2215
Br51.92552.47942.47943.2215

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 112.199 H2 C1 Br4 107.795
H2 C1 Br5 107.795 H3 C1 Br4 107.795
H3 C1 Br5 107.795 Br4 C1 Br5 113.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.464      
2 H 0.245      
3 H 0.245      
4 Br -0.013      
5 Br -0.013      


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 1.526 1.526
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.444 0.000 0.000
y 0.000 -44.976 0.000
z 0.000 0.000 -40.984
Traceless
 xyz
x -0.464 0.000 0.000
y 0.000 -2.762 0.000
z 0.000 0.000 3.226
Polar
3z2-r26.452
x2-y21.533
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.648 0.000 0.000
y 0.000 10.974 0.000
z 0.000 0.000 7.259


<r2> (average value of r2) Å2
<r2> 221.144
(<r2>)1/2 14.871