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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: PBEPBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-674.620168
Energy at 298.15K-674.622655
Nuclear repulsion energy457.561812
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 PBEPBE/6-31G**
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 1364 1345 0.00      
2 A1g 776 766 0.00      
3 A1g 333 328 0.00      
4 A1u 44 43 0.00      
5 A2u 1089 1074 261.81      
6 A2u 677 667 31.86      
7 Eg 1208 1192 0.00      
7 Eg 1208 1192 0.00      
8 Eg 588 580 0.00      
8 Eg 588 580 0.00      
9 Eg 356 351 0.00      
9 Eg 356 351 0.00      
10 Eu 1221 1204 497.65      
10 Eu 1221 1204 497.67      
11 Eu 492 485 2.83      
11 Eu 492 485 2.83      
12 Eu 198 196 2.05      
12 Eu 198 196 2.05      

Unscaled Zero Point Vibrational Energy (zpe) 6203.8 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 6118.8 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 PBEPBE/6-31G**
ABC
0.09187 0.06026 0.06026

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G**

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
C2 0.000 0.000 -0.776
F3 0.000 1.269 1.234
F4 -1.099 -0.634 1.234
F5 1.099 -0.634 1.234
F6 0.000 -1.269 -1.234
F7 -1.099 0.634 -1.234
F8 1.099 0.634 -1.234

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.55261.34871.34871.34872.37712.37712.3771
C21.55262.37712.37712.37711.34871.34871.3487
F31.34872.37712.19752.19753.53962.77482.7748
F41.34872.37712.19752.19752.77482.77483.5396
F51.34872.37712.19752.19752.77483.53962.7748
F62.37711.34873.53962.77482.77482.19752.1975
F72.37711.34872.77482.77483.53962.19752.1975
F82.37711.34872.77483.53962.77482.19752.1975

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.833 C1 C2 F7 109.833
C1 C2 F8 109.833 C2 C1 F3 109.833
C2 C1 F4 109.833 C2 C1 F5 109.833
F3 C1 F4 109.107 F3 C1 F5 109.107
F4 C1 F5 109.107 F6 C2 F7 109.107
F6 C2 F8 109.107 F7 C2 F8 109.107
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.640      
2 C 0.640      
3 F -0.213      
4 F -0.213      
5 F -0.213      
6 F -0.213      
7 F -0.213      
8 F -0.213      


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 -40.035 0.000 0.000
y 0.000 -40.035 0.000
z 0.000 0.000 -40.059
Traceless
 xyz
x 0.012 0.000 0.000
y 0.000 0.012 0.000
z 0.000 0.000 -0.024
Polar
3z2-r2-0.047
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 3.785 0.000 0.000
y 0.000 3.785 -0.000
z 0.000 -0.000 3.697


<r2> (average value of r2) Å2
<r2> 201.382
(<r2>)1/2 14.191