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

using model chemistry: HF/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 HF/6-31+G**
 hartrees
Energy at 0K-5216.680275
Energy at 298.15K-5216.688099
HF Energy-5216.680275
Nuclear repulsion energy427.590695
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 HF/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 3414 3087 0.70      
2 A1 1807 1634 33.84      
3 A1 1308 1183 2.27      
4 A1 614 555 10.26      
5 A1 113 102 0.09      
6 A2 1069 966 0.00      
7 A2 443 401 0.00      
8 B1 788 713 73.20      
9 B2 3389 3065 20.00      
10 B2 1418 1282 66.85      
11 B2 806 728 75.31      
12 B2 511 462 3.98      

Unscaled Zero Point Vibrational Energy (zpe) 7839.7 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 7088.6 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 HF/6-31+G**
ABC
0.29640 0.03308 0.02976

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.656 1.229
C2 0.000 -0.656 1.229
Br3 0.000 1.773 -0.272
Br4 0.000 -1.773 -0.272
H5 0.000 1.192 2.157
H6 0.000 -1.192 2.157

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.31191.87152.85571.07192.0681
C21.31192.85571.87152.06811.0719
Br31.87152.85573.54672.49783.8336
Br42.85571.87153.54673.83362.4978
H51.07192.06812.49783.83362.3845
H62.06811.07193.83362.49782.3845

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 126.661 C1 C2 H6 120.023
C2 C1 Br3 126.661 C2 C1 H5 120.023
Br3 C1 H5 113.316 Br4 C2 H6 113.316
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.060      
2 C -0.060      
3 Br -0.134      
4 Br -0.134      
5 H 0.194      
6 H 0.194      


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 2.101 2.101
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.340 0.000 0.000
y 0.000 -49.884 0.000
z 0.000 0.000 -42.714
Traceless
 xyz
x -5.041 0.000 0.000
y 0.000 -2.857 0.000
z 0.000 0.000 7.897
Polar
3z2-r215.795
x2-y2-1.456
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.739 0.000 0.000
y 0.000 11.851 0.000
z 0.000 0.000 8.220


<r2> (average value of r2) Å2
<r2> 290.727
(<r2>)1/2 17.051