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

using model chemistry: PBEPBEultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at PBEPBEultrafine/6-31+G**
 hartrees
Energy at 0K-5219.922124
Energy at 298.15K-5219.929667
HF Energy-5219.922124
Nuclear repulsion energy426.095546
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 PBEPBEultrafine/6-31+G**
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 3167 3130 0.19      
2 A1 1594 1576 39.50      
3 A1 1150 1137 0.69      
4 A1 571 564 7.97      
5 A1 97 96 0.02      
6 A2 857 847 0.00      
7 A2 395 391 0.00      
8 B1 669 662 73.01      
9 B2 3146 3110 17.32      
10 B2 1243 1228 41.58      
11 B2 727 719 82.27      
12 B2 469 463 2.45      

Unscaled Zero Point Vibrational Energy (zpe) 7042.7 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 6962.4 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 PBEPBEultrafine/6-31+G**
ABC
0.28841 0.03313 0.02972

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 1.246
C2 0.000 -0.670 1.246
Br3 0.000 1.771 -0.276
Br4 0.000 -1.771 -0.276
H5 0.000 1.224 2.187
H6 0.000 -1.224 2.187

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.34001.87832.87651.09222.1150
C21.34002.87651.87832.11501.0922
Br31.87832.87653.54192.52303.8777
Br42.87651.87833.54193.87772.5230
H51.09222.11502.52303.87772.4481
H62.11501.09223.87772.52302.4481

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 125.884 C1 C2 H6 120.486
C2 C1 Br3 125.884 C2 C1 H5 120.486
Br3 C1 H5 113.630 Br4 C2 H6 113.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.111      
2 C -0.111      
3 Br -0.078      
4 Br -0.078      
5 H 0.189      
6 H 0.189      


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 1.601 1.601
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.931 0.000 0.000
y 0.000 -48.818 0.000
z 0.000 0.000 -42.829
Traceless
 xyz
x -5.108 0.000 0.000
y 0.000 -1.938 0.000
z 0.000 0.000 7.046
Polar
3z2-r214.092
x2-y2-2.113
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.239 0.000 0.000
y 0.000 12.975 0.000
z 0.000 0.000 9.177


<r2> (average value of r2) Å2
<r2> 291.131
(<r2>)1/2 17.063