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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-673.642689
Energy at 298.15K-673.645530
HF Energy-672.380913
Nuclear repulsion energy463.165833
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 MP3/6-31G*
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 1524 1430 0.00      
2 A1g 829 779 0.00      
3 A1g 358 336 0.00      
4 A1u 67 63 0.00      
5 A2u 1173 1101 296.76      
6 A2u 719 675 43.68      
7 Eg 1337 1255 0.00      
7 Eg 1337 1255 0.00      
8 Eg 631 592 0.00      
8 Eg 631 592 0.00      
9 Eg 385 362 0.00      
9 Eg 385 362 0.00      
10 Eu 1345 1262 518.70      
10 Eu 1345 1262 518.70      
11 Eu 525 493 6.63      
11 Eu 525 493 6.63      
12 Eu 216 202 3.03      
12 Eu 216 202 3.03      

Unscaled Zero Point Vibrational Energy (zpe) 6773.0 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 6357.2 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 MP3/6-31G*
ABC
0.09380 0.06192 0.06192

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.766
C2 0.000 0.000 -0.766
F3 0.000 1.256 1.215
F4 -1.087 -0.628 1.215
F5 1.087 -0.628 1.215
F6 0.000 -1.256 -1.215
F7 -1.087 0.628 -1.215
F8 1.087 0.628 -1.215

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.53111.33371.33371.33372.34522.34522.3452
C21.53112.34522.34522.34521.33371.33371.3337
F31.33372.34522.17492.17493.49472.73552.7355
F41.33372.34522.17492.17492.73552.73553.4947
F51.33372.34522.17492.17492.73553.49472.7355
F62.34521.33373.49472.73552.73552.17492.1749
F72.34521.33372.73552.73553.49472.17492.1749
F82.34521.33372.73553.49472.73552.17492.1749

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.701 C1 C2 F7 109.701
C1 C2 F8 109.701 C2 C1 F3 109.701
C2 C1 F4 109.701 C2 C1 F5 109.701
F3 C1 F4 109.241 F3 C1 F5 109.241
F4 C1 F5 109.241 F6 C2 F7 109.241
F6 C2 F8 109.241 F7 C2 F8 109.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability