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

using model chemistry: HF/6-31G*

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/6-31G*
 hartrees
Energy at 0K-5216.643197
Energy at 298.15K-5216.651001
HF Energy-5216.643197
Nuclear repulsion energy429.918249
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/6-31G*
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 3436 3088 2.05      
2 A1 1813 1629 29.52      
3 A1 1296 1165 3.55      
4 A1 617 555 11.75      
5 A1 123 111 0.09      
6 A2 1061 953 0.00      
7 A2 418 375 0.00      
8 B1 789 709 63.43      
9 B2 3412 3066 13.58      
10 B2 1413 1270 61.06      
11 B2 816 733 62.19      
12 B2 505 453 5.10      

Unscaled Zero Point Vibrational Energy (zpe) 7849.8 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 7053.0 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/6-31G*
ABC
0.28734 0.03401 0.03041

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.656 1.251
C2 0.000 -0.656 1.251
Br3 0.000 1.748 -0.277
Br4 0.000 -1.748 -0.277
H5 0.000 1.202 2.172
H6 0.000 -1.202 2.172

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.31151.87802.84831.07122.0739
C21.31152.84831.87802.07391.0712
Br31.87802.84833.49682.50883.8345
Br42.84831.87803.49683.83452.5088
H51.07122.07392.50883.83452.4047
H62.07391.07123.83452.50882.4047

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 125.579 C1 C2 H6 120.681
C2 C1 Br3 125.579 C2 C1 H5 120.681
Br3 C1 H5 113.739 Br4 C2 H6 113.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.170      
2 C -0.170      
3 Br -0.078      
4 Br -0.078      
5 H 0.248      
6 H 0.248      


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 2.071 2.071
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.460 0.000 0.000
y 0.000 -48.968 0.000
z 0.000 0.000 -41.875
Traceless
 xyz
x -5.038 0.000 0.000
y 0.000 -2.800 0.000
z 0.000 0.000 7.839
Polar
3z2-r215.677
x2-y2-1.492
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.260 0.000 0.000
y 0.000 10.725 0.000
z 0.000 0.000 7.525


<r2> (average value of r2) Å2
<r2> 285.020
(<r2>)1/2 16.883