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All results from a given calculation for CHBrCHBr (Ethene, 1,2-dibromo-, (E)-)

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-5220.794596
Energy at 298.15K-5220.801857
HF Energy-5220.794596
Nuclear repulsion energy385.645661
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 B3LYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3260 3130 0.00      
2 Ag 1646 1581 0.00      
3 Ag 1291 1240 0.00      
4 Ag 746 717 0.00      
5 Ag 218 209 0.00      
6 Au 940 903 53.56      
7 Au 170 164 0.06      
8 Bg 760 730 0.00      
9 Bu 3256 3126 11.79      
10 Bu 1193 1146 40.66      
11 Bu 670 644 83.40      
12 Bu 196 188 1.67      

Unscaled Zero Point Vibrational Energy (zpe) 7173.4 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 6888.6 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 B3LYP/6-31G*
ABC
1.70096 0.01979 0.01956

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.382 0.542 0.000
C2 0.382 -0.542 0.000
Br3 0.382 2.284 0.000
Br4 -0.382 -2.284 0.000
H5 -1.464 0.532 0.000
H6 1.464 -0.532 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32651.90242.82591.08222.1362
C21.32652.82591.90242.13621.0822
Br31.90242.82594.63142.54593.0163
Br42.82591.90244.63143.01632.5459
H51.08222.13622.54593.01633.1159
H62.13621.08223.01632.54593.1159

picture of Ethene, 1,2-dibromo-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 121.102 C1 C2 H6 124.648
C2 C1 Br3 121.102 C2 C1 H5 124.648
Br3 C1 H5 114.250 Br4 C2 H6 114.250
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.125      
2 C -0.125      
3 Br -0.078      
4 Br -0.078      
5 H 0.203      
6 H 0.203      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.334 -0.238 0.000
y -0.238 -48.882 0.000
z 0.000 0.000 -49.677
Traceless
 xyz
x 3.946 -0.238 0.000
y -0.238 -1.377 0.000
z 0.000 0.000 -2.569
Polar
3z2-r2-5.137
x2-y23.549
xy-0.238
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.304 1.024 0.000
y 1.024 14.015 0.000
z 0.000 0.000 4.374


<r2> (average value of r2) Å2
<r2> 415.469
(<r2>)1/2 20.383