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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: wB97X-D/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 wB97X-D/6-311+G(3df,2p)
 hartrees
Energy at 0K-5187.659930
Energy at 298.15K 
HF Energy-5187.659930
Nuclear repulsion energy352.334160
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/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 3142 3142 1.12 84.57 0.05 0.09
2 A1 1452 1452 0.14 10.23 0.50 0.67
3 A1 602 602 3.38 17.99 0.06 0.12
4 A1 175 175 0.09 3.34 0.34 0.51
5 A2 1136 1136 0.00 1.04 0.75 0.86
6 B1 3228 3228 2.93 41.77 0.75 0.86
7 B1 825 825 3.82 0.31 0.75 0.86
8 B2 1237 1237 60.24 0.34 0.75 0.86
9 B2 685 685 84.29 4.85 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6241.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6241.4 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/6-311+G(3df,2p)
ABC
0.88987 0.04087 0.03937

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.928
H2 -0.896 0.000 1.535
H3 0.896 0.000 1.535
Br4 0.000 1.613 -0.123
Br5 0.000 -1.613 -0.123

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.08191.08191.92581.9258
H21.08191.79162.48092.4809
H31.08191.79162.48092.4809
Br41.92582.48092.48093.2268
Br51.92582.48092.48093.2268

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 111.789 H2 C1 Br4 107.827
H2 C1 Br5 107.827 H3 C1 Br4 107.827
H3 C1 Br5 107.827 Br4 C1 Br5 113.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.350      
2 H 0.207      
3 H 0.207      
4 Br -0.032      
5 Br -0.032      


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 1.485 1.485
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.201 0.000 0.000
y 0.000 -44.539 0.000
z 0.000 0.000 -40.728
Traceless
 xyz
x -0.568 0.000 0.000
y 0.000 -2.574 0.000
z 0.000 0.000 3.142
Polar
3z2-r26.285
x2-y21.338
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.715 0.000 0.000
y 0.000 11.042 0.000
z 0.000 0.000 7.327


<r2> (average value of r2) Å2
<r2> 221.505
(<r2>)1/2 14.883