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

using model chemistry: PBEPBE/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 PBEPBE/6-311G*
 hartrees
Energy at 0K-5224.770278
Energy at 298.15K-5224.777801
HF Energy-5224.770278
Nuclear repulsion energy424.511402
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 PBEPBE/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 3148 3116 1.75      
2 A1 1587 1571 39.96      
3 A1 1152 1140 1.27      
4 A1 576 570 8.32      
5 A1 104 103 0.01      
6 A2 834 825 0.00      
7 A2 370 366 0.00      
8 B1 652 646 78.39      
9 B2 3127 3094 12.11      
10 B2 1249 1236 39.96      
11 B2 745 737 78.08      
12 B2 467 463 2.31      

Unscaled Zero Point Vibrational Energy (zpe) 7005.6 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 6932.8 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 PBEPBE/6-311G*
ABC
0.28688 0.03285 0.02948

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.668 1.250
C2 0.000 -0.668 1.250
Br3 0.000 1.779 -0.277
Br4 0.000 -1.779 -0.277
H5 0.000 1.223 2.189
H6 0.000 -1.223 2.189

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33581.88782.88381.09122.1111
C21.33582.88381.88782.11111.0912
Br31.88782.88383.55752.52803.8845
Br42.88381.88783.55753.88452.5280
H51.09122.11112.52803.88452.4451
H62.11111.09123.88452.52802.4451

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 126.045 C1 C2 H6 120.552
C2 C1 Br3 126.045 C2 C1 H5 120.552
Br3 C1 H5 113.403 Br4 C2 H6 113.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.311      
2 C -0.311      
3 Br 0.049      
4 Br 0.049      
5 H 0.263      
6 H 0.263      


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 1.579 1.579
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.586 0.000 0.000
y 0.000 -48.084 0.000
z 0.000 0.000 -42.452
Traceless
 xyz
x -5.318 0.000 0.000
y 0.000 -1.565 0.000
z 0.000 0.000 6.883
Polar
3z2-r213.766
x2-y2-2.502
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.980 0.000 0.000
y 0.000 11.584 0.000
z 0.000 0.000 8.163


<r2> (average value of r2) Å2
<r2> 292.891
(<r2>)1/2 17.114