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: HSEh1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at HSEh1PBE/STO-3G
 hartrees
Energy at 0K-2805.600303
Energy at 298.15K 
HF Energy-2805.600303
Nuclear repulsion energy990.942878
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 HSEh1PBE/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 1077 951 0.00 11.87 0.03 0.05
2 A1g 451 398 0.00 22.96 0.03 0.06
3 A1g 205 181 0.00 2.72 0.60 0.75
4 A1u 71 62 0.00 0.00 0.00 0.00
5 A2u 718 634 101.13 0.00 0.00 0.00
6 A2u 372 328 10.76 0.00 0.00 0.00
7 Eg 977 863 0.00 10.45 0.75 0.86
7 Eg 977 863 0.00 10.45 0.75 0.86
8 Eg 343 303 0.00 8.29 0.75 0.86
8 Eg 343 303 0.00 8.29 0.75 0.86
9 Eg 207 183 0.00 5.00 0.75 0.86
9 Eg 207 183 0.00 5.00 0.75 0.86
10 Eu 912 806 213.67 0.00 0.00 0.00
10 Eu 912 806 213.68 0.00 0.00 0.00
11 Eu 262 231 2.80 0.00 0.00 0.00
11 Eu 262 231 2.80 0.00 0.00 0.00
12 Eu 147 130 0.53 0.00 0.00 0.00
12 Eu 147 130 0.53 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4294.0 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 3792.0 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 HSEh1PBE/STO-3G
ABC
0.02686 0.02263 0.02263

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.806
C2 0.000 0.000 -0.806
Cl3 0.000 1.729 1.407
Cl4 -1.498 -0.865 1.407
Cl5 1.498 -0.865 1.407
Cl6 0.000 -1.729 -1.407
Cl7 -1.498 0.865 -1.407
Cl8 1.498 0.865 -1.407

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 Cl7 Cl8
C11.61281.83091.83091.83092.80922.80922.8092
C21.61282.80922.80922.80921.83091.83091.8309
Cl31.83092.80922.99562.99564.45943.30353.3035
Cl41.83092.80922.99562.99563.30353.30354.4594
Cl51.83092.80922.99562.99563.30354.45943.3035
Cl62.80921.83094.45943.30353.30352.99562.9956
Cl72.80921.83093.30353.30354.45942.99562.9956
Cl82.80921.83093.30354.45943.30352.99562.9956

picture of hexachloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 109.158 C1 C2 Cl7 109.158
C1 C2 Cl8 109.158 C2 C1 Cl3 109.158
C2 C1 Cl4 109.158 C2 C1 Cl5 109.158
Cl3 C1 Cl4 109.782 Cl3 C1 Cl5 109.782
Cl4 C1 Cl5 109.782 Cl6 C2 Cl7 109.782
Cl6 C2 Cl8 109.782 Cl7 C2 Cl8 109.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.107      
2 C 0.107      
3 Cl -0.036      
4 Cl -0.036      
5 Cl -0.036      
6 Cl -0.036      
7 Cl -0.036      
8 Cl -0.036      


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 -83.046 0.000 0.000
y 0.000 -83.046 0.000
z 0.000 0.000 -83.362
Traceless
 xyz
x 0.158 0.000 0.000
y 0.000 0.158 0.000
z 0.000 0.000 -0.315
Polar
3z2-r2-0.631
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 7.264 0.000 0.000
y 0.000 7.264 0.000
z 0.000 0.000 4.036


<r2> (average value of r2) Å2
<r2> 566.844
(<r2>)1/2 23.808