Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

C6F5 anion


Gas phase ion energetics data

Go To: Top, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

Electron affinity of neutral species

EAneutral (eV) Method Reference Comment
3.18 ± 0.13D-EABuker, Nibbering, et al., 1997 
>2.487 ± 0.088D-EAHerd, Adams, et al., 1989More acidic than HF, less than HCl
2.70 ± 0.20NBAECompton and Reinhardt, 1982From perfluorobenzene
2.74495SIPage and Goode, 1969The Magnetron method, lacking mass analysis, is not considered reliable.

Protonation reactions

C6F5- + Hydrogen cation = Benzene, pentafluoro-

By formula: C6F5- + H+ = C6HF5

Quantity Value Units Method Reference Comment
Deltar1492. ± 8.8kJ/molG+TSBuker, Nibbering, et al., 1997gas phase
Deltar<1559.6 ± 1.3kJ/molG+TSHerd, Adams, et al., 1989gas phase; More acidic than HF, less than HCl
Deltar1539. ± 21.kJ/molD-EACompton and Reinhardt, 1982gas phase; From perfluorobenzene
Quantity Value Units Method Reference Comment
Deltar1460. ± 8.4kJ/molIMREBuker, Nibbering, et al., 1997gas phase
Deltar<1527.2kJ/molIMRBHerd, Adams, et al., 1989gas phase; More acidic than HF, less than HCl
Deltar1507. ± 21.kJ/molH-TSCompton and Reinhardt, 1982gas phase; From perfluorobenzene

References

Go To: Top, Gas phase ion energetics data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Buker, Nibbering, et al., 1997
Buker, H.H.; Nibbering, N.M.M.; Espinosa, D.; Mongin, F.; Schlosser, M., Additivity of substituent effects in the fluoroarene series: Equilibrium acidity in the gas phase and deprotonation rates in ethereal solution, Tetrahed. Lett., 1997, 38, 49, 8519-8522, https://doi.org/10.1016/S0040-4039(97)10303-3 . [all data]

Herd, Adams, et al., 1989
Herd, C.R.; Adams, N.G.; Smith, D., FALP Studies of Electron Attachment Reactions of C6F5Cl, C6F5Br, and C6F5I, Int. J. Mass Spectrom. Ion Proc., 1989, 87, 3, 331, https://doi.org/10.1016/0168-1176(89)80032-1 . [all data]

Compton and Reinhardt, 1982
Compton, R.N.; Reinhardt, P.W., Collisonal ionization between fast alkali atoms and hexafluorobenzene, Chem. Phys. Lett., 1982, 91, 268. [all data]

Page and Goode, 1969
Page, F.M.; Goode, G.C., Negative Ions and the Magnetron., Wiley, NY, 1969. [all data]


Notes

Go To: Top, Gas phase ion energetics data, References