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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: HF/6-311G**

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/6-311G**
 hartrees
Energy at 0K-672.565121
Energy at 298.15K-672.568341
Nuclear repulsion energy470.593072
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/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 1611 1464 0.00      
2 A1g 891 810 0.00      
3 A1g 379 344 0.00      
4 A1u 73 66 0.00      
5 A2u 1232 1120 404.03      
6 A2u 784 712 52.88      
7 Eg 1407 1279 0.00      
7 Eg 1407 1279 0.00      
8 Eg 679 616 0.00      
8 Eg 679 616 0.00      
9 Eg 420 382 0.00      
9 Eg 420 382 0.00      
10 Eu 1415 1285 694.04      
10 Eu 1415 1285 694.04      
11 Eu 573 521 8.92      
11 Eu 573 521 8.92      
12 Eu 235 213 4.35      
12 Eu 235 213 4.35      

Unscaled Zero Point Vibrational Energy (zpe) 7213.8 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 6553.7 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/6-311G**
ABC
0.09793 0.06332 0.06332

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.765
C2 0.000 0.000 -0.765
F3 0.000 1.229 1.207
F4 -1.064 -0.614 1.207
F5 1.064 -0.614 1.207
F6 0.000 -1.229 -1.207
F7 -1.064 0.614 -1.207
F8 1.064 0.614 -1.207

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.52941.30611.30611.30612.32352.32352.3235
C21.52942.32352.32352.32351.30611.30611.3061
F31.30612.32352.12852.12853.44532.70922.7092
F41.30612.32352.12852.12852.70922.70923.4453
F51.30612.32352.12852.12852.70923.44532.7092
F62.32351.30613.44532.70922.70922.12852.1285
F72.32351.30612.70922.70923.44532.12852.1285
F82.32351.30612.70923.44532.70922.12852.1285

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.803 C1 C2 F7 109.803
C1 C2 F8 109.803 C2 C1 F3 109.803
C2 C1 F4 109.803 C2 C1 F5 109.803
F3 C1 F4 109.137 F3 C1 F5 109.137
F4 C1 F5 109.137 F6 C2 F7 109.137
F6 C2 F8 109.137 F7 C2 F8 109.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.773      
2 C 0.773      
3 F -0.258      
4 F -0.258      
5 F -0.258      
6 F -0.258      
7 F -0.258      
8 F -0.258      


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 -41.880 0.000 0.000
y 0.000 -41.880 0.000
z 0.000 0.000 -41.545
Traceless
 xyz
x -0.168 0.000 0.000
y 0.000 -0.168 0.000
z 0.000 0.000 0.335
Polar
3z2-r20.670
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 3.082 0.000 0.000
y 0.000 3.082 0.000
z 0.000 0.000 2.871


<r2> (average value of r2) Å2
<r2> 193.353
(<r2>)1/2 13.905