return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2Cl6 (hexachloroethane)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-100.683096
Energy at 298.15K-100.683426
HF Energy-100.683096
Nuclear repulsion energy198.896551
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1g 973 948 0.00      
2 A1g 392 382 0.00      
3 A1g 210 205 0.00      
4 A1u 79 77 0.00      
5 A2u 625 609 83.98      
6 A2u 349 340 1.37      
7 Eg 783 763 0.00      
7 Eg 782 763 0.00      
8 Eg 317 309 0.00      
8 Eg 317 309 0.00      
9 Eg 208 203 0.00      
9 Eg 208 203 0.00      
10 Eu 707 689 229.90      
10 Eu 707 689 229.95      
11 Eu 261 255 0.11      
11 Eu 261 255 0.11      
12 Eu 154 150 0.42      
12 Eu 154 150 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 3743.2 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 3647.8 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 B3LYP/CEP-121G
ABC
0.02624 0.02182 0.02182

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.794
C2 0.000 0.000 -0.794
Cl3 0.000 1.750 1.442
Cl4 -1.515 -0.875 1.442
Cl5 1.515 -0.875 1.442
Cl6 0.000 -1.750 -1.442
Cl7 -1.515 0.875 -1.442
Cl8 1.515 0.875 -1.442

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 Cl7 Cl8
C11.58861.86581.86581.86582.83952.83952.8395
C21.58862.83952.83952.83951.86581.86581.8658
Cl31.86582.83953.03063.03064.53483.37343.3734
Cl41.86582.83953.03063.03063.37343.37344.5348
Cl51.86582.83953.03063.03063.37344.53483.3734
Cl62.83951.86584.53483.37343.37343.03063.0306
Cl72.83951.86583.37343.37344.53483.03063.0306
Cl82.83951.86583.37344.53483.37343.03063.0306

picture of hexachloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 110.315 C1 C2 Cl7 110.315
C1 C2 Cl8 110.315 C2 C1 Cl3 110.315
C2 C1 Cl4 110.315 C2 C1 Cl5 110.315
Cl3 C1 Cl4 108.614 Cl3 C1 Cl5 108.614
Cl4 C1 Cl5 108.614 Cl6 C2 Cl7 108.614
Cl6 C2 Cl8 108.614 Cl7 C2 Cl8 108.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.659      
2 C -0.659      
3 Cl 0.220      
4 Cl 0.220      
5 Cl 0.220      
6 Cl 0.220      
7 Cl 0.220      
8 Cl 0.220      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -82.707 0.000 0.000
y 0.000 -82.707 0.000
z 0.000 0.000 -84.858
Traceless
 xyz
x 1.075 0.000 0.000
y 0.000 1.075 0.000
z 0.000 0.000 -2.151
Polar
3z2-r2-4.302
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.156 0.000 0.000
y 0.000 14.158 -0.000
z 0.000 -0.000 10.486


<r2> (average value of r2) Å2
<r2> 273.077
(<r2>)1/2 16.525