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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: MP2/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 MP2/CEP-121G*
 hartrees
Energy at 0K-155.499914
Energy at 298.15K-155.502656
HF Energy-154.198736
Nuclear repulsion energy257.815411
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 MP2/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 1460 1391 0.00      
2 A1g 800 762 0.00      
3 A1g 349 332 0.00      
4 A1u 69 66 0.00      
5 A2u 1114 1062 294.69      
6 A2u 702 669 36.58      
7 Eg 1246 1188 0.00      
7 Eg 1246 1188 0.00      
8 Eg 611 582 0.00      
8 Eg 611 582 0.00      
9 Eg 373 355 0.00      
9 Eg 373 355 0.00      
10 Eu 1260 1200 588.11      
10 Eu 1260 1200 588.11      
11 Eu 513 488 4.77      
11 Eu 513 488 4.77      
12 Eu 216 205 3.23      
12 Eu 216 205 3.23      

Unscaled Zero Point Vibrational Energy (zpe) 6464.5 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 6159.4 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 MP2/CEP-121G*
ABC
0.09242 0.06013 0.06013

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
C2 0.000 0.000 -0.780
F3 0.000 1.265 1.237
F4 -1.096 -0.632 1.237
F5 1.096 -0.632 1.237
F6 0.000 -1.265 -1.237
F7 -1.096 0.632 -1.237
F8 1.096 0.632 -1.237

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.56061.34501.34501.34502.38152.38152.3815
C21.56062.38152.38152.38151.34501.34501.3450
F31.34502.38152.19102.19103.53912.77942.7794
F41.34502.38152.19102.19102.77942.77943.5391
F51.34502.38152.19102.19102.77943.53912.7794
F62.38151.34503.53912.77942.77942.19102.1910
F72.38151.34502.77942.77943.53912.19102.1910
F82.38151.34502.77943.53912.77942.19102.1910

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.867 C1 C2 F7 109.867
C1 C2 F8 109.867 C2 C1 F3 109.867
C2 C1 F4 109.867 C2 C1 F5 109.867
F3 C1 F4 109.072 F3 C1 F5 109.072
F4 C1 F5 109.072 F6 C2 F7 109.072
F6 C2 F8 109.072 F7 C2 F8 109.072
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.620      
2 C 0.620      
3 F -0.207      
4 F -0.207      
5 F -0.207      
6 F -0.207      
7 F -0.207      
8 F -0.207      


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 -42.593 0.000 0.000
y 0.000 -42.593 0.000
z 0.000 0.000 -42.517
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-r20.152
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 3.986 0.000 0.000
y 0.000 3.986 0.000
z 0.000 0.000 3.863


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