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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: HF/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-672.684940
Energy at 298.15K-672.688158
HF Energy-672.684940
Nuclear repulsion energy470.409172
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1g 1585 1437 0.00      
2 A1g 892 809 0.00      
3 A1g 377 342 0.00      
4 A1u 76 69 0.00      
5 A2u 1235 1119 370.62      
6 A2u 787 714 49.02      
7 Eg 1406 1274 0.00      
7 Eg 1406 1274 0.00      
8 Eg 681 617 0.00      
8 Eg 681 617 0.00      
9 Eg 419 380 0.00      
9 Eg 419 380 0.00      
10 Eu 1413 1280 635.12      
10 Eu 1413 1280 635.12      
11 Eu 575 521 7.29      
11 Eu 575 521 7.29      
12 Eu 234 212 3.31      
12 Eu 234 212 3.31      

Unscaled Zero Point Vibrational Energy (zpe) 7204.2 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 6529.9 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/Def2TZVPP
ABC
0.09832 0.06301 0.06301

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

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 1.238 1.218
F4 -1.072 -0.619 1.218
F5 1.072 -0.619 1.218
F6 0.000 -1.238 -1.218
F7 -1.072 0.619 -1.218
F8 1.072 0.619 -1.218

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.53811.31691.31691.31692.34142.34142.3414
C21.53812.34142.34142.34141.31691.31691.3169
F31.31692.34142.14402.14403.47382.73322.7332
F41.31692.34142.14402.14402.73322.73323.4738
F51.31692.34142.14402.14402.73323.47382.7332
F62.34141.31693.47382.73322.73322.14402.1440
F72.34141.31692.73322.73323.47382.14402.1440
F82.34141.31692.73323.47382.73322.14402.1440

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.952 C1 C2 F7 109.952
C1 C2 F8 109.952 C2 C1 F3 109.952
C2 C1 F4 109.952 C2 C1 F5 109.952
F3 C1 F4 108.986 F3 C1 F5 108.986
F4 C1 F5 108.986 F6 C2 F7 108.986
F6 C2 F8 108.986 F7 C2 F8 108.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.658      
2 C 0.658      
3 F -0.219      
4 F -0.219      
5 F -0.219      
6 F -0.219      
7 F -0.219      
8 F -0.219      


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 -41.633 0.000 0.000
y 0.000 -41.633 0.000
z 0.000 0.000 -41.260
Traceless
 xyz
x -0.186 0.000 0.000
y 0.000 -0.186 0.000
z 0.000 0.000 0.373
Polar
3z2-r20.746
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 3.741 0.000 0.000
y 0.000 3.741 0.000
z 0.000 0.000 3.650


<r2> (average value of r2) Å2
<r2> 193.649
(<r2>)1/2 13.916