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

using model chemistry: HSEh1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at HSEh1PBE/STO-3G
 hartrees
Energy at 0K-5167.917674
Energy at 298.15K-5167.925250
HF Energy-5167.917674
Nuclear repulsion energy427.319366
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 HSEh1PBE/STO-3G
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 3490 3082 3.52      
2 A1 1795 1585 19.81      
3 A1 1289 1138 0.10      
4 A1 675 596 10.33      
5 A1 106 93 0.10      
6 A2 996 879 0.00      
7 A2 403 356 0.00      
8 B1 740 653 22.57      
9 B2 3466 3061 46.07      
10 B2 1435 1267 51.43      
11 B2 869 768 35.64      
12 B2 528 466 3.81      

Unscaled Zero Point Vibrational Energy (zpe) 7895.9 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 6972.9 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 HSEh1PBE/STO-3G
ABC
0.28991 0.03333 0.02989

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 1.240
C2 0.000 -0.670 1.240
Br3 0.000 1.766 -0.275
Br4 0.000 -1.766 -0.275
H5 0.000 1.204 2.199
H6 0.000 -1.204 2.199

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33961.87012.86841.09782.1050
C21.33962.86841.87012.10501.0978
Br31.87012.86843.53142.53733.8654
Br42.86841.87013.53143.86542.5373
H51.09782.10502.53733.86542.4080
H62.10501.09783.86542.53732.4080

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 125.874 C1 C2 H6 119.117
C2 C1 Br3 125.874 C2 C1 H5 119.117
Br3 C1 H5 115.009 Br4 C2 H6 115.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.153      
2 C -0.153      
3 Br 0.046      
4 Br 0.046      
5 H 0.107      
6 H 0.107      


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 1.506 1.506
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.663 0.000 0.000
y 0.000 -44.797 0.000
z 0.000 0.000 -40.565
Traceless
 xyz
x -1.981 0.000 0.000
y 0.000 -2.183 0.000
z 0.000 0.000 4.165
Polar
3z2-r28.329
x2-y20.134
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.612 0.000 0.000
y 0.000 5.796 0.000
z 0.000 0.000 3.961


<r2> (average value of r2) Å2
<r2> 287.021
(<r2>)1/2 16.942