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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: B97D3/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/aug-cc-pVQZ
 hartrees
Energy at 0K-5190.348853
Energy at 298.15K 
HF Energy-5190.348853
Nuclear repulsion energy347.455628
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 B97D3/aug-cc-pVQZ
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 3078 3078 1.95 97.05 0.04 0.08
2 A1 1401 1401 0.07 10.93 0.49 0.66
3 A1 553 553 3.58 19.03 0.06 0.12
4 A1 165 165 0.06 4.49 0.31 0.48
5 A2 1088 1088 0.00 0.75 0.75 0.86
6 B1 3168 3168 1.35 45.36 0.75 0.86
7 B1 800 800 3.54 0.34 0.75 0.86
8 B2 1187 1187 62.79 0.17 0.75 0.86
9 B2 583 583 121.96 3.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6011.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6011.4 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 B97D3/aug-cc-pVQZ
ABC
0.88025 0.03961 0.03819

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.935
H2 -0.904 0.000 1.535
H3 0.904 0.000 1.535
Br4 0.000 1.639 -0.124
Br5 0.000 -1.639 -0.124

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.08491.08491.95121.9512
H21.08491.80752.50102.5010
H31.08491.80752.50102.5010
Br41.95122.50102.50103.2776
Br51.95122.50102.50103.2776

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 112.831 H2 C1 Br4 107.470
H2 C1 Br5 107.470 H3 C1 Br4 107.470
H3 C1 Br5 107.470 Br4 C1 Br5 114.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.592      
2 H 0.297      
3 H 0.297      
4 Br -0.001      
5 Br -0.001      


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 1.460 1.460
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.071 0.000 0.000
y 0.000 -44.649 0.000
z 0.000 0.000 -40.721
Traceless
 xyz
x -0.386 0.000 0.000
y 0.000 -2.753 0.000
z 0.000 0.000 3.139
Polar
3z2-r26.278
x2-y21.579
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.193 0.000 0.000
y 0.000 12.068 0.000
z 0.000 0.000 7.851


<r2> (average value of r2) Å2
<r2> 227.407
(<r2>)1/2 15.080