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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-674.626614
Energy at 298.15K-674.629319
HF Energy-674.626614
Nuclear repulsion energy463.454563
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 PBE1PBE/6-31G*
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 1463 1391 0.00      
2 A1g 823 782 0.00      
3 A1g 348 331 0.00      
4 A1u 48 45 0.00      
5 A2u 1153 1096 284.76      
6 A2u 714 678 39.54      
7 Eg 1297 1233 0.00      
7 Eg 1297 1233 0.00      
8 Eg 620 589 0.00      
8 Eg 620 589 0.00      
9 Eg 376 357 0.00      
9 Eg 376 357 0.00      
10 Eu 1310 1244 529.32      
10 Eu 1310 1244 529.34      
11 Eu 518 492 4.66      
11 Eu 518 492 4.66      
12 Eu 205 195 2.50      
12 Eu 205 195 2.50      

Unscaled Zero Point Vibrational Energy (zpe) 6600.4 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 6272.4 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 PBE1PBE/6-31G*
ABC
0.09440 0.06173 0.06173

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

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 1.252 1.220
F4 -1.084 -0.626 1.220
F5 1.084 -0.626 1.220
F6 0.000 -1.252 -1.220
F7 -1.084 0.626 -1.220
F8 1.084 0.626 -1.220

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.53871.33021.33021.33022.35012.35012.3501
C21.53872.35012.35012.35011.33021.33021.3302
F31.33022.35012.16782.16783.49532.74182.7418
F41.33022.35012.16782.16782.74182.74183.4953
F51.33022.35012.16782.16782.74183.49532.7418
F62.35011.33023.49532.74182.74182.16782.1678
F72.35011.33022.74182.74183.49532.16782.1678
F82.35011.33022.74183.49532.74182.16782.1678

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.791 C1 C2 F7 109.791
C1 C2 F8 109.791 C2 C1 F3 109.791
C2 C1 F4 109.791 C2 C1 F5 109.791
F3 C1 F4 109.150 F3 C1 F5 109.150
F4 C1 F5 109.150 F6 C2 F7 109.150
F6 C2 F8 109.150 F7 C2 F8 109.150
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.742      
2 C 0.742      
3 F -0.247      
4 F -0.247      
5 F -0.247      
6 F -0.247      
7 F -0.247      
8 F -0.247      


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 -40.226 0.000 0.000
y 0.000 -40.226 0.000
z 0.000 0.000 -40.153
Traceless
 xyz
x -0.037 0.000 0.000
y 0.000 -0.037 0.000
z 0.000 0.000 0.073
Polar
3z2-r20.146
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 3.552 0.000 0.000
y 0.000 3.552 -0.000
z 0.000 -0.000 3.458


<r2> (average value of r2) Å2
<r2> 197.143
(<r2>)1/2 14.041