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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-311G**
 hartrees
Energy at 0K-5224.912148
Energy at 298.15K-5224.919791
HF Energy-5224.912148
Nuclear repulsion energy428.379663
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/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 3241 3112 0.20      
2 A1 1656 1590 36.51      
3 A1 1184 1137 1.52      
4 A1 599 576 8.52      
5 A1 108 104 0.02      
6 A2 906 870 0.00      
7 A2 387 372 0.00      
8 B1 692 664 76.40      
9 B2 3218 3091 17.77      
10 B2 1286 1235 41.11      
11 B2 774 743 75.14      
12 B2 482 463 2.13      

Unscaled Zero Point Vibrational Energy (zpe) 7266.2 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 6978.5 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/6-311G**
ABC
0.29036 0.03354 0.03006

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.662 1.242
C2 0.000 -0.662 1.242
Br3 0.000 1.760 -0.275
Br4 0.000 -1.760 -0.275
H5 0.000 1.212 2.175
H6 0.000 -1.212 2.175

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32481.87312.85881.08262.0936
C21.32482.85881.87312.09361.0826
Br31.87312.85883.52102.51073.8521
Br42.85881.87313.52103.85212.5107
H51.08262.09362.51073.85212.4241
H62.09361.08263.85212.51072.4241

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 125.892 C1 C2 H6 120.512
C2 C1 Br3 125.892 C2 C1 H5 120.512
Br3 C1 H5 113.596 Br4 C2 H6 113.596
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/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 1.677 1.677
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.481 0.000 0.000
y 0.000 -48.229 0.000
z 0.000 0.000 -42.362
Traceless
 xyz
x -5.185 0.000 0.000
y 0.000 -1.808 0.000
z 0.000 0.000 6.993
Polar
3z2-r213.986
x2-y2-2.252
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.977 0.000 0.000
y 0.000 11.180 0.000
z 0.000 0.000 7.910


<r2> (average value of r2) Å2
<r2> 287.802
(<r2>)1/2 16.965