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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: MP2/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 MP2/cc-pVTZ
 hartrees
Energy at 0K-674.445947
Energy at 298.15K-674.448837
HF Energy-672.643962
Nuclear repulsion energy464.059853
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/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 1469 1395 0.00      
2 A1g 821 780 0.00      
3 A1g 356 338 0.00      
4 A1u 72 69 0.00      
5 A2u 1142 1085 281.85      
6 A2u 724 687 35.34      
7 Eg 1266 1202 0.00      
7 Eg 1266 1202 0.00      
8 Eg 628 596 0.00      
8 Eg 628 596 0.00      
9 Eg 385 365 0.00      
9 Eg 385 365 0.00      
10 Eu 1286 1221 546.52      
10 Eu 1286 1221 546.52      
11 Eu 529 502 4.46      
11 Eu 529 502 4.46      
12 Eu 218 207 2.66      
12 Eu 218 207 2.66      

Unscaled Zero Point Vibrational Energy (zpe) 6603.2 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 6269.7 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 MP2/cc-pVTZ
ABC
0.09472 0.06185 0.06185

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.770
C2 0.000 0.000 -0.770
F3 0.000 1.250 1.219
F4 -1.082 -0.625 1.219
F5 1.082 -0.625 1.219
F6 0.000 -1.250 -1.219
F7 -1.082 0.625 -1.219
F8 1.082 0.625 -1.219

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.54051.32761.32761.32762.34892.34892.3489
C21.54052.34892.34892.34891.32761.32761.3276
F31.32762.34892.16432.16433.49102.73912.7391
F41.32762.34892.16432.16432.73912.73913.4910
F51.32762.34892.16432.16432.73913.49102.7391
F62.34891.32763.49102.73912.73912.16432.1643
F72.34891.32762.73912.73913.49102.16432.1643
F82.34891.32762.73913.49102.73912.16432.1643

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.744 C1 C2 F7 109.744
C1 C2 F8 109.744 C2 C1 F3 109.744
C2 C1 F4 109.744 C2 C1 F5 109.744
F3 C1 F4 109.197 F3 C1 F5 109.197
F4 C1 F5 109.197 F6 C2 F7 109.197
F6 C2 F8 109.197 F7 C2 F8 109.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.423      
2 C 0.423      
3 F -0.141      
4 F -0.141      
5 F -0.141      
6 F -0.141      
7 F -0.141      
8 F -0.141      


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 -41.613 0.000 0.000
y 0.000 -41.613 0.000
z 0.000 0.000 -41.453
Traceless
 xyz
x -0.080 0.000 0.000
y 0.000 -0.080 0.000
z 0.000 0.000 0.160
Polar
3z2-r20.320
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 4.020 0.000 0.000
y 0.000 4.020 0.000
z 0.000 0.000 3.863


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