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

using model chemistry: TPSSh/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 TPSSh/6-31G
 hartrees
Energy at 0K-5220.260701
Energy at 298.15K-5220.268301
HF Energy-5220.260701
Nuclear repulsion energy427.499254
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 TPSSh/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 3284 3159 0.89      
2 A1 1657 1595 34.85      
3 A1 1192 1147 1.70      
4 A1 561 540 13.49      
5 A1 111 106 0.03      
6 A2 948 912 0.00      
7 A2 384 370 0.00      
8 B1 738 710 102.40      
9 B2 3258 3134 11.45      
10 B2 1302 1253 42.43      
11 B2 731 703 69.04      
12 B2 457 439 5.18      

Unscaled Zero Point Vibrational Energy (zpe) 7310.9 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 7033.8 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 TPSSh/6-31G
ABC
0.26595 0.03455 0.03058

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.665 1.306
C2 0.000 -0.665 1.306
Br3 0.000 1.733 -0.287
Br4 0.000 -1.733 -0.287
H5 0.000 1.247 2.217
H6 0.000 -1.247 2.217

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33031.91822.87941.08132.1184
C21.33032.87941.91822.11841.0813
Br31.91822.87943.46632.55133.8931
Br42.87941.91823.46633.89312.5513
H51.08132.11842.55133.89312.4946
H62.11841.08133.89312.55132.4946

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 123.833 C1 C2 H6 122.576
C2 C1 Br3 123.833 C2 C1 H5 122.576
Br3 C1 H5 113.591 Br4 C2 H6 113.591
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.366      
2 C -0.366      
3 Br 0.136      
4 Br 0.136      
5 H 0.230      
6 H 0.230      


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 2.019 2.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.136 0.000 0.000
y 0.000 9.466 0.000
z 0.000 0.000 7.295


<r2> (average value of r2) Å2
<r2> 284.034
(<r2>)1/2 16.853