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: HF/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-2832.812742
Energy at 298.15K-2832.813892
HF Energy-2832.812742
Nuclear repulsion energy1020.540174
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/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 1099 994 0.00      
2 Ag 967 875 0.00      
3 Ag 967 875 0.00      
4 Ag 465 421 0.00      
5 Ag 369 333 0.00      
6 Ag 369 333 0.00      
7 Ag 243 220 0.00      
8 Ag 243 220 0.00      
9 Ag 238 215 0.00      
10 Au 871 788 181.57      
11 Au 871 788 181.57      
12 Au 747 676 55.11      
13 Au 407 368 0.84      
14 Au 301 272 0.00      
15 Au 301 272 0.00      
16 Au 178 161 0.04      
17 Au 178 161 0.04      
18 Au 90 82 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4451.7 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 4027.0 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/daug-cc-pVTZ
ABC
0.02920 0.02361 0.02361

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.788
C2 0.000 0.000 -0.788
Cl3 1.659 0.000 1.399
Cl4 -0.829 1.437 1.399
Cl5 -0.829 -1.437 1.399
Cl6 -1.659 0.000 -1.399
Cl7 0.829 1.437 -1.399
Cl8 0.829 -1.437 -1.399

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 Cl5 Cl6 Cl7 Cl8
C11.57501.76781.76781.76782.74422.74422.7442
C21.57502.74422.74422.74421.76781.76781.7678
Cl31.76782.74422.87322.87324.33953.25213.2521
Cl41.76782.74422.87322.87323.25213.25214.3395
Cl51.76782.74422.87322.87323.25214.33953.2521
Cl62.74421.76784.33953.25213.25212.87322.8732
Cl72.74421.76783.25213.25214.33952.87322.8732
Cl82.74421.76783.25214.33953.25212.87322.8732

picture of hexachloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 110.223 C1 C2 Cl7 110.223
C1 C2 Cl8 110.223 C2 C1 Cl3 110.223
C2 C1 Cl4 110.223 C2 C1 Cl5 110.223
Cl3 C1 Cl4 108.709 Cl3 C1 Cl5 108.709
Cl4 C1 Cl5 108.709 Cl6 C2 Cl7 108.709
Cl6 C2 Cl8 108.709 Cl7 C2 Cl8 108.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.943      
2 C 0.943      
3 Cl -0.314      
4 Cl -0.314      
5 Cl -0.314      
6 Cl -0.314      
7 Cl -0.314      
8 Cl -0.314      


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 -85.332 0.000 0.000
y 0.000 -85.332 0.000
z 0.000 0.000 -87.462
Traceless
 xyz
x 1.065 0.000 0.000
y 0.000 1.065 0.000
z 0.000 0.000 -2.129
Polar
3z2-r2-4.258
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 15.228 0.000 0.000
y 0.000 15.228 0.000
z 0.000 0.000 14.156


<r2> (average value of r2) Å2
<r2> 541.389
(<r2>)1/2 23.268