CF3SO3 anion


Gas phase ion energetics data

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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
>5.299963LPDHerd, Misth, et al., 1989No detachment with 5.49 eV photons
>4.90 ± 0.20IMRBViggiano, Paulson, et al., 1987ΔGacid: CF3SO3H<FSO3H<H2SO4<HPO3<HI, ΔGacid(CF3SO3H)<313.6 kcal

Protonation reactions

CF3O3S- + Hydrogen cation = CHF3O3S

By formula: CF3O3S- + H+ = CHF3O3S

Quantity Value Units Method Reference Comment
Δr305.4 ± 2.2kcal/molG+TSKoppel, Taft, et al., 1994gas phase; Per Leito, Raamat, et al., 2009, dGacid is likely too weak by at least 1.3 kcal/mol, and possibly 5.3, due to problems in the ladder at dGacid=299
Δr<313.6 ± 2.0kcal/molEIAEAdams, Smith, et al., 1986gas phase; From CF3SO3H,anhydride
Quantity Value Units Method Reference Comment
Δr299.5 ± 2.0kcal/molIMREKoppel, Taft, et al., 1994gas phase; Per Leito, Raamat, et al., 2009, dGacid is likely too weak by at least 1.3 kcal/mol, and possibly 5.3, due to problems in the ladder at dGacid=299
Δr298.8 ± 2.5kcal/molIMRBViggiano, Henchman, et al., 1992gas phase

References

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

Herd, Misth, et al., 1989
Herd, C.A.; Misth, D.; Adams, N.G., A Study of Dissociative Electron Attachment to CF3SO3CH3 and CF3SO3C2H5 Triflate Esters Using the FALP Apparatus, Int. J. Mass Spectrom. Ion Proc., 1989, 91, 2, 177, https://doi.org/10.1016/0168-1176(89)83007-1 . [all data]

Viggiano, Paulson, et al., 1987
Viggiano, A.A.; Paulson, J.F.; Dale, F.; Henchman, M., Negative Ion Chemistry of Triflic Anhydride in the Gas Phase and the Electron Affinity of CF3SO3, J. Phys. Chem., 1987, 91, 11, 3031, https://doi.org/10.1021/j100295a077 . [all data]

Koppel, Taft, et al., 1994
Koppel, I.A.; Taft, R.W.; Anvia, F.; Zhu, S.Z.; Hu, L.Q.; Sung, K.S.; Desmarteau, D.D.; Yagupolskii, L.M., The Gas-Phase Acidities of Very Strong Neutral Bronsted Acids, J. Am. Chem. Soc., 1994, 116, 7, 3047, https://doi.org/10.1021/ja00086a038 . [all data]

Leito, Raamat, et al., 2009
Leito, I.; Raamat, E.; Kutt, A.; Saame, J.; Kipper, K.; Koppel, I.A.; Koppel, I.; Zhang, M.; Mishima, M.; Yagupolskii, L.M.; Garlyauskayte, R.Y.; Filatov, A.A., Revision of the Gas-Phase Acidity Scale below 300 kcal mol(-1), J. Phys. Chem. A, 2009, 113, 29, 8421-8424, https://doi.org/10.1021/jp903780k . [all data]

Adams, Smith, et al., 1986
Adams, N.G.; Smith, D.; Viggiano, A.A.; Paulson, J.F.; Henchman, M.J., Dissociative attachment reactions of electron with strong acid molecules, J. Chem. Phys., 1986, 84, 6728. [all data]

Viggiano, Henchman, et al., 1992
Viggiano, A.A.; Henchman, M.J.; Dale, F.; Deakyne, C.A.; Paulson, J.F., Gas-Phase Reactions of Weak Bronsted Bases I-, PO3-, HSO4-, FSO3-, and CF3SO3- with Strong Bronsted Acids H2SO4, FSO3H, and CF3SO3H - A Quantitative Study, J. Am. Chem. Soc., 1992, 114, 11, 4299, https://doi.org/10.1021/ja00037a039 . [all data]


Notes

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