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All results from a given calculation for CH2Br2 (dibromomethane)

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

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/cc-pVTZ-PP
 hartrees
Energy at 0K-873.153007
Energy at 298.15K 
HF Energy-873.153007
Nuclear repulsion energy212.363501
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/cc-pVTZ-PP
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 3150 3150 1.88 91.97 0.06 0.11
2 A1 1450 1450 0.00 10.24 0.63 0.77
3 A1 601 601 3.36 15.35 0.07 0.13
4 A1 173 173 0.08 4.00 0.40 0.58
5 A2 1128 1128 0.00 3.06 0.75 0.86
6 B1 3235 3235 1.53 45.88 0.75 0.86
7 B1 824 824 4.66 1.19 0.75 0.86
8 B2 1234 1234 65.35 0.00 0.75 0.86
9 B2 683 683 83.54 5.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6238.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6238.5 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/cc-pVTZ-PP
ABC
0.88661 0.04087 0.03937

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.930
H2 -0.896 0.000 1.536
H3 0.896 0.000 1.536
Br4 0.000 1.613 -0.124
Br5 0.000 -1.613 -0.124

Atom - Atom Distances (Å)
  C1 H2 H3 Br4 Br5
C11.08151.08151.92721.9272
H21.08151.79232.48192.4819
H31.08151.79232.48192.4819
Br41.92722.48192.48193.2267
Br51.92722.48192.48193.2267

picture of dibromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 111.910 H2 C1 Br4 107.830
H2 C1 Br5 107.830 H3 C1 Br4 107.830
H3 C1 Br5 107.830 Br4 C1 Br5 113.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.181      
2 H 0.136      
3 H 0.136      
4 Br -0.046      
5 Br -0.046      


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 1.461 1.461
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.453 0.000 0.000
y 0.000 -43.613 0.000
z 0.000 0.000 -40.046
Traceless
 xyz
x -0.624 0.000 0.000
y 0.000 -2.363 0.000
z 0.000 0.000 2.987
Polar
3z2-r25.974
x2-y21.159
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.376 0.000 0.000
y 0.000 10.112 0.000
z 0.000 0.000 6.294


<r2> (average value of r2) Å2
<r2> 168.685
(<r2>)1/2 12.988