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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: PBEPBE/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-674.665211
Energy at 298.15K-674.667695
Nuclear repulsion energy457.164142
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-pVDZ
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 1352 1344 0.00      
2 A1g 769 764 0.00      
3 A1g 331 329 0.00      
4 A1u 40 39 0.00      
5 A2u 1071 1065 283.05      
6 A2u 677 673 31.16      
7 Eg 1183 1176 0.00      
7 Eg 1183 1176 0.00      
8 Eg 584 581 0.00      
8 Eg 584 581 0.00      
9 Eg 355 353 0.00      
9 Eg 355 353 0.00      
10 Eu 1200 1193 549.84      
10 Eu 1200 1193 549.89      
11 Eu 495 492 2.84      
11 Eu 495 492 2.84      
12 Eu 197 196 2.53      
12 Eu 197 196 2.53      

Unscaled Zero Point Vibrational Energy (zpe) 6133.1 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 6097.5 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-pVDZ
ABC
0.09207 0.05997 0.05997

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.778
C2 0.000 0.000 -0.778
F3 0.000 1.267 1.239
F4 -1.098 -0.634 1.239
F5 1.098 -0.634 1.239
F6 0.000 -1.267 -1.239
F7 -1.098 0.634 -1.239
F8 1.098 0.634 -1.239

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.55551.34881.34881.34882.38212.38212.3821
C21.55552.38212.38212.38211.34881.34881.3488
F31.34882.38212.19522.19523.54502.78362.7836
F41.34882.38212.19522.19522.78362.78363.5450
F51.34882.38212.19522.19522.78363.54502.7836
F62.38211.34883.54502.78362.78362.19522.1952
F72.38211.34882.78362.78363.54502.19522.1952
F82.38211.34882.78363.54502.78362.19522.1952

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 110.004 C1 C2 F7 110.004
C1 C2 F8 110.004 C2 C1 F3 110.004
C2 C1 F4 110.004 C2 C1 F5 110.004
F3 C1 F4 108.933 F3 C1 F5 108.933
F4 C1 F5 108.933 F6 C2 F7 108.933
F6 C2 F8 108.933 F7 C2 F8 108.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.358      
2 C 0.358      
3 F -0.119      
4 F -0.119      
5 F -0.119      
6 F -0.119      
7 F -0.119      
8 F -0.119      


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 -40.586 0.000 0.000
y 0.000 -40.586 0.000
z 0.000 0.000 -40.728
Traceless
 xyz
x 0.071 0.000 0.000
y 0.000 0.071 0.000
z 0.000 0.000 -0.142
Polar
3z2-r2-0.284
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 3.605 0.000 0.000
y 0.000 3.605 -0.000
z 0.000 -0.000 3.431


<r2> (average value of r2) Å2
<r2> 202.295
(<r2>)1/2 14.223