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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: mPW1PW91/aug-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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-675.206376
Energy at 298.15K-675.209109
Nuclear repulsion energy462.022543
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1g 1426 1367 0.00      
2 A1g 805 771 0.00      
3 A1g 344 330 0.00      
4 A1u 63 60 0.00      
5 A2u 1113 1067 275.42      
6 A2u 704 675 36.46      
7 Eg 1230 1179 0.00      
7 Eg 1230 1179 0.00      
8 Eg 610 584 0.00      
8 Eg 610 584 0.00      
9 Eg 372 357 0.00      
9 Eg 372 357 0.00      
10 Eu 1250 1197 548.20      
10 Eu 1250 1197 548.25      
11 Eu 511 490 3.86      
11 Eu 511 490 3.86      
12 Eu 208 200 2.26      
12 Eu 208 200 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 6407.9 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 6140.7 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/aug-cc-pVDZ
ABC
0.09405 0.06123 0.06123

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
C2 0.000 0.000 -0.773
F3 0.000 1.254 1.226
F4 -1.086 -0.627 1.226
F5 1.086 -0.627 1.226
F6 0.000 -1.254 -1.226
F7 -1.086 0.627 -1.226
F8 1.086 0.627 -1.226

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.54641.33321.33321.33322.36002.36002.3600
C21.54642.36002.36002.36001.33321.33321.3332
F31.33322.36002.17192.17193.50752.75422.7542
F41.33322.36002.17192.17192.75422.75423.5075
F51.33322.36002.17192.17192.75423.50752.7542
F62.36001.33323.50752.75422.75422.17192.1719
F72.36001.33322.75422.75423.50752.17192.1719
F82.36001.33322.75423.50752.75422.17192.1719

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.859 C1 C2 F7 109.859
C1 C2 F8 109.859 C2 C1 F3 109.859
C2 C1 F4 109.859 C2 C1 F5 109.859
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/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.272      
2 C 1.272      
3 F -0.424      
4 F -0.424      
5 F -0.424      
6 F -0.424      
7 F -0.424      
8 F -0.424      


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 -41.864 0.000 0.000
y 0.000 -41.864 0.000
z 0.000 0.000 -41.644
Traceless
 xyz
x -0.110 0.000 0.000
y 0.000 -0.110 0.000
z 0.000 0.000 0.220
Polar
3z2-r20.440
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 4.723 0.000 0.000
y 0.000 4.724 0.000
z 0.000 0.000 4.701


<r2> (average value of r2) Å2
<r2> 199.361
(<r2>)1/2 14.120