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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-5226.299313
Energy at 298.15K-5226.306961
HF Energy-5226.299313
Nuclear repulsion energy429.820055
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 B1B95/6-311G*
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 3250 3115 1.72      
2 A1 1665 1596 35.66      
3 A1 1194 1145 1.47      
4 A1 603 578 8.71      
5 A1 115 110 0.02      
6 A2 903 866 0.00      
7 A2 385 369 0.00      
8 B1 690 661 77.42      
9 B2 3228 3094 13.42      
10 B2 1300 1246 42.11      
11 B2 778 746 73.10      
12 B2 485 465 2.00      

Unscaled Zero Point Vibrational Energy (zpe) 7297.7 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 6995.6 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 B1B95/6-311G*
ABC
0.29004 0.03387 0.03033

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.661 1.243
C2 0.000 -0.661 1.243
Br3 0.000 1.752 -0.275
Br4 0.000 -1.752 -0.275
H5 0.000 1.211 2.174
H6 0.000 -1.211 2.174

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32271.86952.85111.08052.0905
C21.32272.85111.86952.09051.0805
Br31.86952.85113.50332.50813.8436
Br42.85111.86953.50333.84362.5081
H51.08052.09052.50813.84362.4213
H62.09051.08053.84362.50812.4213

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 125.678 C1 C2 H6 120.555
C2 C1 Br3 125.678 C2 C1 H5 120.555
Br3 C1 H5 113.768 Br4 C2 H6 113.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.316      
2 C -0.316      
3 Br 0.042      
4 Br 0.042      
5 H 0.274      
6 H 0.274      


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 1.685 1.685
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.346 0.000 0.000
y 0.000 -48.062 0.000
z 0.000 0.000 -42.111
Traceless
 xyz
x -5.259 0.000 0.000
y 0.000 -1.833 0.000
z 0.000 0.000 7.093
Polar
3z2-r214.185
x2-y2-2.284
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.923 0.000 0.000
y 0.000 11.041 0.000
z 0.000 0.000 7.867


<r2> (average value of r2) Å2
<r2> 285.522
(<r2>)1/2 16.897