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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-675.173241
Energy at 298.15K-675.175915
Nuclear repulsion energy463.427256
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-pVDZ
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 1446 1390 0.00      
2 A1g 813 781 0.00      
3 A1g 341 328 0.00      
4 A1u 44 42 0.00      
5 A2u 1129 1086 309.89      
6 A2u 710 682 39.97      
7 Eg 1265 1216 0.00      
7 Eg 1265 1216 0.00      
8 Eg 614 590 0.00      
8 Eg 614 590 0.00      
9 Eg 371 357 0.00      
9 Eg 371 357 0.00      
10 Eu 1283 1234 591.40      
10 Eu 1283 1233 591.33      
11 Eu 517 497 4.87      
11 Eu 517 497 4.87      
12 Eu 196 189 3.16      
12 Eu 196 189 3.16      

Unscaled Zero Point Vibrational Energy (zpe) 6487.2 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 6235.5 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-pVDZ
ABC
0.09454 0.06165 0.06165

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

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.769
C2 0.000 0.000 -0.769
F3 0.000 1.251 1.222
F4 -1.083 -0.625 1.222
F5 1.083 -0.625 1.222
F6 0.000 -1.251 -1.222
F7 -1.083 0.625 -1.222
F8 1.083 0.625 -1.222

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.53821.33001.33001.33002.35092.35092.3509
C21.53822.35092.35092.35091.33001.33001.3300
F31.33002.35092.16632.16633.49652.74462.7446
F41.33002.35092.16632.16632.74462.74463.4965
F51.33002.35092.16632.16632.74463.49652.7446
F62.35091.33003.49652.74462.74462.16632.1663
F72.35091.33002.74462.74463.49652.16632.1663
F82.35091.33002.74463.49652.74462.16632.1663

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.886 C1 C2 F7 109.886
C1 C2 F8 109.886 C2 C1 F3 109.886
C2 C1 F4 109.886 C2 C1 F5 109.886
F3 C1 F4 109.053 F3 C1 F5 109.053
F4 C1 F5 109.053 F6 C2 F7 109.053
F6 C2 F8 109.053 F7 C2 F8 109.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.433      
2 C 0.433      
3 F -0.144      
4 F -0.144      
5 F -0.144      
6 F -0.144      
7 F -0.144      
8 F -0.144      


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 -40.708 0.000 0.000
y 0.000 -40.708 0.000
z 0.000 0.000 -40.680
Traceless
 xyz
x -0.014 0.000 0.000
y 0.000 -0.014 0.000
z 0.000 0.000 0.028
Polar
3z2-r20.056
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 3.381 0.000 0.000
y 0.000 3.381 -0.000
z 0.000 -0.000 3.195


<r2> (average value of r2) Å2
<r2> 197.563
(<r2>)1/2 14.056