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

using model chemistry: LSDA/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at LSDA/6-31G**
 hartrees
Energy at 0K-5214.758075
Energy at 298.15K-5214.765669
HF Energy-5214.758075
Nuclear repulsion energy437.693447
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 LSDA/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 A1 3175 3116 0.24      
2 A1 1633 1603 33.59      
3 A1 1120 1099 0.60      
4 A1 614 602 9.05      
5 A1 115 113 0.01      
6 A2 853 837 0.00      
7 A2 382 375 0.00      
8 B1 665 652 65.15      
9 B2 3155 3096 19.10      
10 B2 1221 1198 24.88      
11 B2 765 751 62.74      
12 B2 476 467 2.07      

Unscaled Zero Point Vibrational Energy (zpe) 7086.4 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 6953.9 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 LSDA/6-31G**
ABC
0.28080 0.03615 0.03203

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.665 1.265
C2 0.000 -0.665 1.265
Br3 0.000 1.693 -0.280
Br4 0.000 -1.693 -0.280
H5 0.000 1.237 2.197
H6 0.000 -1.237 2.197

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33071.85592.81981.09292.1185
C21.33072.81981.85592.11851.0929
Br31.85592.81983.38662.51793.8369
Br42.81981.85593.38663.83692.5179
H51.09292.11852.51793.83692.4750
H62.11851.09293.83692.51792.4750

picture of Ethene, 1,2-dibromo-, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 123.634 C1 C2 H6 121.568
C2 C1 Br3 123.634 C2 C1 H5 121.568
Br3 C1 H5 114.798 Br4 C2 H6 114.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.126      
2 C -0.126      
3 Br -0.054      
4 Br -0.054      
5 H 0.180      
6 H 0.180      


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 1.576 1.576
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.484 0.000 0.000
y 0.000 -47.315 0.000
z 0.000 0.000 -41.455
Traceless
 xyz
x -5.099 0.000 0.000
y 0.000 -1.846 0.000
z 0.000 0.000 6.945
Polar
3z2-r213.890
x2-y2-2.169
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.334 0.000 0.000
y 0.000 11.008 0.000
z 0.000 0.000 8.054


<r2> (average value of r2) Å2
<r2> 272.215
(<r2>)1/2 16.499