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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-153.946814
Energy at 298.15K-153.949661
Nuclear repulsion energy256.126815
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/CEP-121G
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 1495 1364 0.00      
2 A1g 797 727 0.00      
3 A1g 355 324 0.00      
4 A1u 68 62 0.00      
5 A2u 1135 1036 343.67      
6 A2u 694 633 67.18      
7 Eg 1310 1195 0.00      
7 Eg 1310 1195 0.00      
8 Eg 617 563 0.00      
8 Eg 617 563 0.00      
9 Eg 381 347 0.00      
9 Eg 381 347 0.00      
10 Eu 1310 1196 533.56      
10 Eu 1310 1196 533.56      
11 Eu 509 464 16.04      
11 Eu 509 464 16.04      
12 Eu 223 204 6.52      
12 Eu 223 204 6.52      

Unscaled Zero Point Vibrational Energy (zpe) 6621.5 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 6042.2 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/CEP-121G
ABC
0.09098 0.05951 0.05951

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.777
C2 0.000 0.000 -0.777
F3 0.000 1.275 1.243
F4 -1.104 -0.637 1.243
F5 1.104 -0.637 1.243
F6 0.000 -1.275 -1.243
F7 -1.104 0.637 -1.243
F8 1.104 0.637 -1.243

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.55301.35771.35771.35772.38842.38842.3884
C21.55302.38842.38842.38841.35771.35771.3577
F31.35772.38842.20832.20833.56152.79422.7942
F41.35772.38842.20832.20832.79422.79423.5615
F51.35772.38842.20832.20832.79423.56152.7942
F62.38841.35773.56152.79422.79422.20832.2083
F72.38841.35772.79422.79423.56152.20832.2083
F82.38841.35772.79423.56152.79422.20832.2083

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 110.105 C1 C2 F7 110.105
C1 C2 F8 110.105 C2 C1 F3 110.105
C2 C1 F4 110.105 C2 C1 F5 110.105
F3 C1 F4 108.830 F3 C1 F5 108.830
F4 C1 F5 108.830 F6 C2 F7 108.830
F6 C2 F8 108.830 F7 C2 F8 108.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.583      
2 C 0.583      
3 F -0.194      
4 F -0.194      
5 F -0.194      
6 F -0.194      
7 F -0.194      
8 F -0.194      


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 -45.092 0.000 0.000
y 0.000 -45.092 0.000
z 0.000 0.000 -44.423
Traceless
 xyz
x -0.334 0.000 0.000
y 0.000 -0.334 0.000
z 0.000 0.000 0.669
Polar
3z2-r21.338
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 3.391 0.000 0.000
y 0.000 3.391 0.000
z 0.000 0.000 2.945


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000