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All results from a given calculation for C2F6 (hexafluoroethane)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-673.652380
Energy at 298.15K-673.655144
HF Energy-672.378756
Nuclear repulsion energy461.533676
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 MP2/6-31G*
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 1501 1416 0.00      
2 A1g 813 767 0.00      
3 A1g 354 334 0.00      
4 A1u 65 62 0.00      
5 A2u 1150 1085 285.04      
6 A2u 706 666 38.89      
7 Eg 1292 1218 0.00      
7 Eg 1292 1218 0.00      
8 Eg 621 586 0.00      
8 Eg 621 586 0.00      
9 Eg 378 357 0.00      
9 Eg 378 357 0.00      
10 Eu 1305 1231 521.46      
10 Eu 1305 1231 521.46      
11 Eu 516 486 5.41      
11 Eu 516 486 5.41      
12 Eu 213 201 2.86      
12 Eu 213 201 2.86      

Unscaled Zero Point Vibrational Energy (zpe) 6620.2 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 6242.8 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 MP2/6-31G*
ABC
0.09293 0.06160 0.06160

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.760
C2 0.000 0.000 -0.760
F3 0.000 1.271 1.192
F4 -1.101 -0.636 1.192
F5 1.101 -0.636 1.192
F6 0.000 -1.271 -1.192
F7 -1.101 0.636 -1.192
F8 1.101 0.636 -1.192

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.51951.34281.34281.34282.32952.32952.3295
C21.51952.32952.32952.32951.34281.34281.3428
F31.34282.32952.20182.20183.48582.70242.7024
F41.34282.32952.20182.20182.70242.70243.4858
F51.34282.32952.20182.20182.70243.48582.7024
F62.32951.34283.48582.70242.70242.20182.2018
F72.32951.34282.70242.70243.48582.20182.2018
F82.32951.34282.70243.48582.70242.20182.2018

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.795 C1 C2 F7 108.795
C1 C2 F8 108.795 C2 C1 F3 108.795
C2 C1 F4 108.795 C2 C1 F5 108.795
F3 C1 F4 110.139 F3 C1 F5 110.139
F4 C1 F5 110.139 F6 C2 F7 110.139
F6 C2 F8 110.139 F7 C2 F8 110.139
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability