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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-665.557387
Energy at 298.15K-665.559037
Nuclear repulsion energy439.225634
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 mPW1PW91/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1' 1207 1061 0.00      
2 A1' 767 674 0.00      
3 A1' 292 257 0.00      
4 A1" 6 6 0.00      
5 A2" 1090 958 149.57      
6 A2" 639 561 46.27      
7 E' 1318 1158 207.91      
7 E' 1318 1158 207.90      
8 E' 454 399 5.47      
8 E' 454 399 5.47      
9 E' 169 148 0.80      
9 E' 169 148 0.80      
10 E" 1360 1195 0.00      
10 E" 1360 1195 0.00      
11 E" 551 484 0.00      
11 E" 551 484 0.00      
12 E" 324 284 0.00      
12 E" 324 284 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 6175.4 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 5427.5 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 mPW1PW91/STO-3G
ABC
0.08629 0.05424 0.05424

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.842
C2 0.000 0.000 -0.842
F3 0.000 1.309 1.312
F4 -1.134 -0.655 1.312
F5 1.134 -0.655 1.312
F6 0.000 1.309 -1.312
F7 1.134 -0.655 -1.312
F8 -1.134 -0.655 -1.312

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.68371.39091.39091.39092.52022.52022.5202
C21.68372.52022.52022.52021.39091.39091.3909
F31.39092.52022.26742.26742.62343.46753.4675
F41.39092.52022.26742.26743.46753.46752.6234
F51.39092.52022.26742.26743.46752.62343.4675
F62.52021.39092.62343.46753.46752.26742.2674
F72.52021.39093.46753.46752.62342.26742.2674
F82.52021.39093.46752.62343.46752.26742.2674

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.743 C1 C2 F7 109.743
C1 C2 F8 109.743 C2 C1 F3 109.743
C2 C1 F4 109.743 C2 C1 F5 109.743
F3 C1 F4 109.198 F3 C1 F5 109.198
F4 C1 F5 109.198 F6 C2 F7 109.198
F6 C2 F8 109.198 F7 C2 F8 109.198
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.272      
2 C 0.272      
3 F -0.091      
4 F -0.091      
5 F -0.091      
6 F -0.091      
7 F -0.091      
8 F -0.091      


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 -35.771 0.000 0.000
y 0.000 -35.771 0.000
z 0.000 0.000 -35.324
Traceless
 xyz
x -0.224 0.000 0.000
y 0.000 -0.224 0.000
z 0.000 0.000 0.448
Polar
3z2-r20.895
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 2.344 0.000 0.000
y 0.000 2.344 0.000
z 0.000 0.000 2.346


<r2> (average value of r2) Å2
<r2> 216.206
(<r2>)1/2 14.704