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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: PBEPBE/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-674.897598
Energy at 298.15K-674.900177
Nuclear repulsion energy458.035274
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/cc-pVTZ
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 1333 1324 0.00      
2 A1g 774 769 0.00      
3 A1g 331 329 0.00      
4 A1u 65 64 0.00      
5 A2u 1070 1062 263.55      
6 A2u 684 679 29.74      
7 Eg 1159 1151 0.00      
7 Eg 1159 1151 0.00      
8 Eg 588 584 0.00      
8 Eg 588 584 0.00      
9 Eg 360 357 0.00      
9 Eg 360 357 0.00      
10 Eu 1180 1172 529.25      
10 Eu 1180 1172 529.27      
11 Eu 498 494 2.42      
11 Eu 498 494 2.42      
12 Eu 204 203 2.16      
12 Eu 204 203 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 6115.9 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 6073.7 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 PBEPBE/cc-pVTZ
ABC
0.09245 0.06017 0.06017

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

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 -1.095 -0.632 1.237
F5 1.095 -0.632 1.237
F6 0.000 -1.265 -1.237
F7 -1.095 0.632 -1.237
F8 1.095 0.632 -1.237

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.56011.34471.34471.34472.38072.38072.3807
C21.56012.38072.38072.38071.34471.34471.3447
F31.34472.38072.19062.19063.53812.77842.7784
F41.34472.38072.19062.19062.77842.77843.5381
F51.34472.38072.19062.19062.77843.53812.7784
F62.38071.34473.53812.77842.77842.19062.1906
F72.38071.34472.77842.77843.53812.19062.1906
F82.38071.34472.77843.53812.77842.19062.1906

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.863 C1 C2 F7 109.863
C1 C2 F8 109.863 C2 C1 F3 109.863
C2 C1 F4 109.863 C2 C1 F5 109.863
F3 C1 F4 109.077 F3 C1 F5 109.077
F4 C1 F5 109.077 F6 C2 F7 109.077
F6 C2 F8 109.077 F7 C2 F8 109.077
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.359      
2 C 0.359      
3 F -0.120      
4 F -0.120      
5 F -0.120      
6 F -0.120      
7 F -0.120      
8 F -0.120      


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 -41.304 0.000 0.000
y 0.000 -41.304 0.000
z 0.000 0.000 -41.231
Traceless
 xyz
x -0.036 0.000 0.000
y 0.000 -0.036 0.000
z 0.000 0.000 0.073
Polar
3z2-r20.145
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 4.331 0.000 0.000
y 0.000 4.331 -0.000
z 0.000 -0.000 4.263


<r2> (average value of r2) Å2
<r2> 202.084
(<r2>)1/2 14.216