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

using model chemistry: PBE1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at PBE1PBE/6-311G**
 hartrees
Energy at 0K-5224.947528
Energy at 298.15K-5224.955177
HF Energy-5224.947528
Nuclear repulsion energy428.603013
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 PBE1PBE/6-311G**
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 3242 3110 0.15      
2 A1 1659 1592 35.99      
3 A1 1185 1137 1.47      
4 A1 603 579 8.46      
5 A1 108 104 0.02      
6 A2 907 870 0.00      
7 A2 388 372 0.00      
8 B1 692 664 76.08      
9 B2 3220 3089 18.13      
10 B2 1287 1235 40.81      
11 B2 777 746 74.46      
12 B2 484 465 1.98      

Unscaled Zero Point Vibrational Energy (zpe) 7275.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 6979.8 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 PBE1PBE/6-311G**
ABC
0.29106 0.03355 0.03009

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.241
C2 0.000 -0.663 1.241
Br3 0.000 1.760 -0.275
Br4 0.000 -1.760 -0.275
H5 0.000 1.211 2.174
H6 0.000 -1.211 2.174

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32511.87102.85741.08282.0935
C21.32512.85741.87102.09351.0828
Br31.87102.85743.52002.50953.8504
Br42.85741.87103.52003.85042.5095
H51.08282.09352.50953.85042.4227
H62.09351.08283.85042.50952.4227

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 125.913 C1 C2 H6 120.453
C2 C1 Br3 125.913 C2 C1 H5 120.453
Br3 C1 H5 113.634 Br4 C2 H6 113.634
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.219      
2 C -0.219      
3 Br 0.034      
4 Br 0.034      
5 H 0.184      
6 H 0.184      


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 1.683 1.683
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.429 0.000 0.000
y 0.000 -48.183 0.000
z 0.000 0.000 -42.311
Traceless
 xyz
x -5.182 0.000 0.000
y 0.000 -1.813 0.000
z 0.000 0.000 6.995
Polar
3z2-r213.990
x2-y2-2.246
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.972 0.000 0.000
y 0.000 11.140 0.000
z 0.000 0.000 7.882


<r2> (average value of r2) Å2
<r2> 287.579
(<r2>)1/2 16.958