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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: PBEPBE/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 PBEPBE/6-311G*
 hartrees
Energy at 0K-674.826063
Energy at 298.15K-674.828581
Nuclear repulsion energy457.640320
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/6-311G*
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 1339 1325 0.00      
2 A1g 771 763 0.00      
3 A1g 332 328 0.00      
4 A1u 51 50 0.00      
5 A2u 1068 1057 294.29      
6 A2u 681 674 30.92      
7 Eg 1165 1152 0.00      
7 Eg 1165 1152 0.00      
8 Eg 586 580 0.00      
8 Eg 586 580 0.00      
9 Eg 360 356 0.00      
9 Eg 360 356 0.00      
10 Eu 1181 1169 567.49      
10 Eu 1181 1169 567.54      
11 Eu 497 492 2.77      
11 Eu 497 492 2.77      
12 Eu 203 201 2.71      
12 Eu 203 201 2.71      

Unscaled Zero Point Vibrational Energy (zpe) 6112.9 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 6049.4 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 PBEPBE/6-311G*
ABC
0.09225 0.06009 0.06009

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.779
C2 0.000 0.000 -0.779
F3 0.000 1.266 1.238
F4 -1.097 -0.633 1.238
F5 1.097 -0.633 1.238
F6 0.000 -1.266 -1.238
F7 -1.097 0.633 -1.238
F8 1.097 0.633 -1.238

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.55711.34681.34681.34682.38082.38082.3808
C21.55712.38082.38082.38081.34681.34681.3468
F31.34682.38082.19302.19303.54112.78032.7803
F41.34682.38082.19302.19302.78032.78033.5411
F51.34682.38082.19302.19302.78033.54112.7803
F62.38081.34683.54112.78032.78032.19302.1930
F72.38081.34682.78032.78033.54112.19302.1930
F82.38081.34682.78033.54112.78032.19302.1930

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.931 C1 C2 F7 109.931
C1 C2 F8 109.931 C2 C1 F3 109.931
C2 C1 F4 109.931 C2 C1 F5 109.931
F3 C1 F4 109.008 F3 C1 F5 109.008
F4 C1 F5 109.008 F6 C2 F7 109.008
F6 C2 F8 109.008 F7 C2 F8 109.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.467      
2 C 0.467      
3 F -0.156      
4 F -0.156      
5 F -0.156      
6 F -0.156      
7 F -0.156      
8 F -0.156      


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 -41.313 0.000 0.000
y 0.000 -41.313 0.000
z 0.000 0.000 -41.283
Traceless
 xyz
x -0.015 0.000 0.000
y 0.000 -0.015 0.000
z 0.000 0.000 0.030
Polar
3z2-r20.060
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 3.750 0.000 0.000
y 0.000 3.750 -0.000
z 0.000 -0.000 3.553


<r2> (average value of r2) Å2
<r2> 202.354
(<r2>)1/2 14.225