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All results from a given calculation for CH2Br2 (dibromomethane)

using model chemistry: B97D3/TZVP

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/TZVP
 hartrees
Energy at 0K-5190.239958
Energy at 298.15K 
HF Energy-5190.239958
Nuclear repulsion energy345.584976
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/TZVP
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 3088 3044 3.20 101.57 0.07 0.13
2 A1 1403 1383 0.40 17.56 0.63 0.78
3 A1 545 537 4.69 13.62 0.11 0.21
4 A1 163 161 0.06 7.09 0.47 0.64
5 A2 1086 1071 0.00 4.61 0.75 0.86
6 B1 3182 3136 0.43 56.07 0.75 0.86
7 B1 797 786 5.50 2.76 0.75 0.86
8 B2 1194 1177 82.62 1.87 0.75 0.86
9 B2 570 562 138.12 5.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6014.5 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 5927.9 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 B97D3/TZVP
ABC
0.87794 0.03913 0.03774

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.936
H2 -0.905 0.000 1.536
H3 0.905 0.000 1.536
Br4 0.000 1.649 -0.124
Br5 0.000 -1.649 -0.124

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.08611.08611.96051.9605
H21.08611.81042.50922.5092
H31.08611.81042.50922.5092
Br41.96052.50922.50923.2980
Br51.96052.50922.50923.2980

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 112.908 H2 C1 Br4 107.392
H2 C1 Br5 107.392 H3 C1 Br4 107.392
H3 C1 Br5 107.392 Br4 C1 Br5 114.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.182      
2 H 0.171      
3 H 0.171      
4 Br -0.080      
5 Br -0.080      


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 1.589 1.589
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.066 0.000 0.000
y 0.000 -44.505 0.000
z 0.000 0.000 -40.594
Traceless
 xyz
x -0.516 0.000 0.000
y 0.000 -2.675 0.000
z 0.000 0.000 3.191
Polar
3z2-r26.383
x2-y21.439
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.548 0.000 0.000
y 0.000 10.322 0.000
z 0.000 0.000 5.649


<r2> (average value of r2) Å2
<r2> 229.724
(<r2>)1/2 15.157