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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-675.126121
Energy at 298.15K-675.128768
Nuclear repulsion energy463.450561
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 B1B95/6-31G**
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 1453 1387 0.00      
2 A1g 818 781 0.00      
3 A1g 341 325 0.00      
4 A1u 43 41 0.00      
5 A2u 1147 1095 285.97      
6 A2u 708 676 40.59      
7 Eg 1290 1231 0.00      
7 Eg 1289 1231 0.00      
8 Eg 616 588 0.00      
8 Eg 616 588 0.00      
9 Eg 370 353 0.00      
9 Eg 370 353 0.00      
10 Eu 1303 1244 528.90      
10 Eu 1303 1244 528.83      
11 Eu 513 490 4.74      
11 Eu 513 490 4.74      
12 Eu 195 186 2.60      
12 Eu 195 186 2.60      

Unscaled Zero Point Vibrational Energy (zpe) 6541.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 6245.7 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 B1B95/6-31G**
ABC
0.09437 0.06175 0.06175

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.769
C2 0.000 0.000 -0.769
F3 0.000 1.252 1.219
F4 -1.084 -0.626 1.219
F5 1.084 -0.626 1.219
F6 0.000 -1.252 -1.219
F7 -1.084 0.626 -1.219
F8 1.084 0.626 -1.219

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.53781.33041.33041.33042.34952.34952.3495
C21.53782.34952.34952.34951.33041.33041.3304
F31.33042.34952.16832.16833.49512.74122.7412
F41.33042.34952.16832.16832.74122.74123.4951
F51.33042.34952.16832.16832.74123.49512.7412
F62.34951.33043.49512.74122.74122.16832.1683
F72.34951.33042.74122.74123.49512.16832.1683
F82.34951.33042.74123.49512.74122.16832.1683

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.789 C1 C2 F7 109.789
C1 C2 F8 109.789 C2 C1 F3 109.789
C2 C1 F4 109.789 C2 C1 F5 109.789
F3 C1 F4 109.151 F3 C1 F5 109.151
F4 C1 F5 109.151 F6 C2 F7 109.151
F6 C2 F8 109.151 F7 C2 F8 109.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.726      
2 C 0.726      
3 F -0.242      
4 F -0.242      
5 F -0.242      
6 F -0.242      
7 F -0.242      
8 F -0.242      


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 -40.160 0.000 0.000
y 0.000 -40.160 0.000
z 0.000 0.000 -40.083
Traceless
 xyz
x -0.038 0.000 0.000
y 0.000 -0.038 0.000
z 0.000 0.000 0.076
Polar
3z2-r20.153
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 3.561 0.000 0.000
y 0.000 3.561 -0.000
z 0.000 -0.000 3.479


<r2> (average value of r2) Å2
<r2> 197.077
(<r2>)1/2 14.038