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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-671.585882
Energy at 298.15K-671.588463
Nuclear repulsion energy456.179882
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 B3LYP/3-21G
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 1361 1313 0.00      
2 A1g 766 739 0.00      
3 A1g 342 330 0.00      
4 A1u 63 61 0.00      
5 A2u 1121 1082 250.85      
6 A2u 658 635 48.47      
7 Eg 1257 1213 0.00      
7 Eg 1257 1213 0.00      
8 Eg 595 574 0.00      
8 Eg 595 574 0.00      
9 Eg 355 343 0.00      
9 Eg 355 343 0.00      
10 Eu 1296 1250 398.42      
10 Eu 1295 1250 398.39      
11 Eu 490 473 8.49      
11 Eu 490 473 8.49      
12 Eu 204 196 4.05      
12 Eu 204 196 4.05      

Unscaled Zero Point Vibrational Energy (zpe) 6351.8 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 6128.9 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 B3LYP/3-21G
ABC
0.08987 0.06069 0.06069

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.761
C2 0.000 0.000 -0.761
F3 0.000 1.283 1.221
F4 -1.111 -0.641 1.221
F5 1.111 -0.641 1.221
F6 0.000 -1.283 -1.221
F7 -1.111 0.641 -1.221
F8 1.111 0.641 -1.221

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.52161.36301.36301.36302.36112.36112.3611
C21.52162.36112.36112.36111.36301.36301.3630
F31.36302.36112.22192.22193.54262.75922.7592
F41.36302.36112.22192.22192.75922.75923.5426
F51.36302.36112.22192.22192.75923.54262.7592
F62.36111.36303.54262.75922.75922.22192.2219
F72.36111.36302.75922.75923.54262.22192.2219
F82.36111.36302.75923.54262.75922.22192.2219

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.751 C1 C2 F7 109.751
C1 C2 F8 109.751 C2 C1 F3 109.751
C2 C1 F4 109.751 C2 C1 F5 109.751
F3 C1 F4 109.190 F3 C1 F5 109.190
F4 C1 F5 109.190 F6 C2 F7 109.190
F6 C2 F8 109.190 F7 C2 F8 109.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.774      
2 C 0.774      
3 F -0.258      
4 F -0.258      
5 F -0.258      
6 F -0.258      
7 F -0.258      
8 F -0.258      


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 -41.163 0.000 0.000
y 0.000 -41.163 0.000
z 0.000 0.000 -41.052
Traceless
 xyz
x -0.055 0.000 0.000
y 0.000 -0.055 0.000
z 0.000 0.000 0.111
Polar
3z2-r20.221
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 2.952 0.000 0.000
y 0.000 2.952 0.000
z 0.000 0.000 2.485


<r2> (average value of r2) Å2
<r2> 202.057
(<r2>)1/2 14.215