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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: B2PLYP/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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-675.171161
Energy at 298.15K-675.173980
HF Energy-674.595486
Nuclear repulsion energy462.855811
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 B2PLYP/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 1431 1373 0.00      
2 A1g 811 778 0.00      
3 A1g 349 335 0.00      
4 A1u 67 65 0.00      
5 A2u 1125 1080 284.57      
6 A2u 716 687 35.04      
7 Eg 1239 1189 0.00      
7 Eg 1239 1189 0.00      
8 Eg 619 594 0.00      
8 Eg 619 594 0.00      
9 Eg 380 364 0.00      
9 Eg 380 364 0.00      
10 Eu 1255 1204 546.61      
10 Eu 1255 1204 546.68      
11 Eu 523 501 4.09      
11 Eu 522 501 4.09      
12 Eu 215 207 2.66      
12 Eu 215 207 2.66      

Unscaled Zero Point Vibrational Energy (zpe) 6480.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 6217.0 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 B2PLYP/cc-pVTZ
ABC
0.09440 0.06144 0.06144

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.766
C2 0.000 0.000 -0.766
F3 0.000 1.261 1.202
F4 -1.092 -0.631 1.202
F5 1.092 -0.631 1.202
F6 0.000 -1.261 -1.202
F7 -1.092 0.631 -1.202
F8 1.092 0.631 -1.202

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.53221.33471.33471.33472.33792.33792.3379
C21.53222.33792.33792.33791.33471.33471.3347
F31.33472.33792.18482.18483.48532.71552.7155
F41.33472.33792.18482.18482.71552.71553.4853
F51.33472.33792.18482.18482.71553.48532.7155
F62.33791.33473.48532.71552.71552.18482.1848
F72.33791.33472.71552.71553.48532.18482.1848
F82.33791.33472.71553.48532.71552.18482.1848

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.079 C1 C2 F7 109.079
C1 C2 F8 109.079 C2 C1 F3 109.079
C2 C1 F4 109.079 C2 C1 F5 109.079
F3 C1 F4 109.861 F3 C1 F5 109.861
F4 C1 F5 109.861 F6 C2 F7 109.861
F6 C2 F8 109.861 F7 C2 F8 109.861
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.520      
2 C 0.520      
3 F -0.173      
4 F -0.173      
5 F -0.173      
6 F -0.173      
7 F -0.173      
8 F -0.173      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.071 0.000 0.000
y 0.000 4.071 0.000
z 0.000 0.000 3.953


<r2> (average value of r2) Å2
<r2> 198.595
(<r2>)1/2 14.092