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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: B1B95/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 B1B95/cc-pVTZ
 hartrees
Energy at 0K-675.384563
Energy at 298.15K-675.387374
Nuclear repulsion energy464.965338
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 B1B95/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 1438 1376 0.00      
2 A1g 824 789 0.00      
3 A1g 345 330 0.00      
4 A1u 69 66 0.00      
5 A2u 1139 1090 288.28      
6 A2u 721 690 38.73      
7 Eg 1261 1207 0.00      
7 Eg 1261 1206 0.00      
8 Eg 621 595 0.00      
8 Eg 621 595 0.00      
9 Eg 378 362 0.00      
9 Eg 378 362 0.00      
10 Eu 1280 1225 561.18      
10 Eu 1280 1225 561.10      
11 Eu 523 501 4.42      
11 Eu 523 501 4.42      
12 Eu 208 199 2.62      
12 Eu 208 199 2.62      

Unscaled Zero Point Vibrational Energy (zpe) 6539.0 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 6258.5 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 B1B95/cc-pVTZ
ABC
0.09537 0.06194 0.06194

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

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 1.245 1.219
F4 -1.078 -0.623 1.219
F5 1.078 -0.623 1.219
F6 0.000 -1.245 -1.219
F7 -1.078 0.623 -1.219
F8 1.078 0.623 -1.219

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.54261.32341.32341.32342.34812.34812.3481
C21.54262.34812.34812.34811.32341.32341.3234
F31.32342.34812.15682.15683.48582.73842.7384
F41.32342.34812.15682.15692.73842.73843.4858
F51.32342.34812.15682.15692.73843.48582.7384
F62.34811.32343.48582.73842.73842.15682.1568
F72.34811.32342.73842.73843.48582.15682.1569
F82.34811.32342.73843.48582.73842.15682.1569

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.793 C1 C2 F7 109.792
C1 C2 F8 109.792 C2 C1 F3 109.793
C2 C1 F4 109.792 C2 C1 F5 109.792
F3 C1 F4 109.148 F3 C1 F5 109.148
F4 C1 F5 109.148 F6 C2 F7 109.148
F6 C2 F8 109.148 F7 C2 F8 109.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.403      
2 C 0.403      
3 F -0.134      
4 F -0.134      
5 F -0.134      
6 F -0.134      
7 F -0.134      
8 F -0.134      


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 -41.123 0.000 0.000
y 0.000 -41.123 0.000
z 0.000 0.000 -40.902
Traceless
 xyz
x -0.110 0.000 0.000
y 0.000 -0.110 0.000
z 0.000 0.000 0.221
Polar
3z2-r20.442
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 4.032 0.000 0.000
y 0.000 4.033 -0.000
z 0.000 -0.000 3.952


<r2> (average value of r2) Å2
<r2> 196.810
(<r2>)1/2 14.029