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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-675.303803
Energy at 298.15K-675.306605
Nuclear repulsion energy463.868073
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 mPW1PW91/6-311G**
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 1440 1377 0.00      
2 A1g 820 784 0.00      
3 A1g 348 333 0.00      
4 A1u 58 55 0.00      
5 A2u 1134 1085 321.11      
6 A2u 720 689 39.12      
7 Eg 1257 1203 0.00      
7 Eg 1257 1203 0.00      
8 Eg 621 594 0.00      
8 Eg 621 594 0.00      
9 Eg 381 364 0.00      
9 Eg 381 364 0.00      
10 Eu 1272 1217 606.11      
10 Eu 1272 1217 606.12      
11 Eu 525 503 4.76      
11 Eu 525 503 4.76      
12 Eu 212 203 3.19      
12 Eu 212 203 3.19      

Unscaled Zero Point Vibrational Energy (zpe) 6528.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 6245.4 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 mPW1PW91/6-311G**
ABC
0.09489 0.06167 0.06167

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.771
C2 0.000 0.000 -0.771
F3 0.000 1.248 1.222
F4 -1.081 -0.624 1.222
F5 1.081 -0.624 1.222
F6 0.000 -1.248 -1.222
F7 -1.081 0.624 -1.222
F8 1.081 0.624 -1.222

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.54251.32731.32731.32732.35202.35202.3520
C21.54252.35202.35202.35201.32731.32731.3273
F31.32732.35202.16232.16233.49402.74462.7446
F41.32732.35202.16232.16232.74462.74463.4940
F51.32732.35202.16232.16232.74463.49402.7446
F62.35201.32733.49402.74462.74462.16232.1623
F72.35201.32732.74462.74463.49402.16232.1623
F82.35201.32732.74463.49402.74462.16232.1623

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.858 C1 C2 F7 109.858
C1 C2 F8 109.858 C2 C1 F3 109.858
C2 C1 F4 109.858 C2 C1 F5 109.858
F3 C1 F4 109.081 F3 C1 F5 109.081
F4 C1 F5 109.081 F6 C2 F7 109.081
F6 C2 F8 109.081 F7 C2 F8 109.081
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.552      
2 C 0.552      
3 F -0.184      
4 F -0.184      
5 F -0.184      
6 F -0.184      
7 F -0.184      
8 F -0.184      


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 -41.329 0.000 0.000
y 0.000 -41.329 0.000
z 0.000 0.000 -41.161
Traceless
 xyz
x -0.084 0.000 0.000
y 0.000 -0.084 0.000
z 0.000 0.000 0.167
Polar
3z2-r20.335
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 3.485 0.000 0.000
y 0.000 3.485 -0.000
z 0.000 -0.000 3.276


<r2> (average value of r2) Å2
<r2> 197.727
(<r2>)1/2 14.062