CF3S anion


Reaction thermochemistry data

Go To: Top, Gas phase ion energetics data, 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

CF3S- + Hydrogen cation = Methanethiol, trifluoro-

By formula: CF3S- + H+ = CHF3S

Quantity Value Units Method Reference Comment
Δr1400. ± 9.6kJ/molG+TSKoppel, Pihl, et al., 1994gas phase; Possibly dissociative protonation -> CF2S + HF + A-. See CF3O-. G2: 321.0, Burk, Koppel, et al., 2000
Quantity Value Units Method Reference Comment
Δr1370. ± 8.4kJ/molIMREKoppel, Pihl, et al., 1994gas phase; Possibly dissociative protonation -> CF2S + HF + A-. See CF3O-. G2: 321.0, Burk, Koppel, et al., 2000

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, 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
3.20 ± 0.50EIAESpyrou, Hunter, et al., 1984From CF3SCF3, CF3SCH3
1.79961SIPage and Goode, 1969The Magnetron method, lacking mass analysis, is not considered reliable.

Protonation reactions

CF3S- + Hydrogen cation = Methanethiol, trifluoro-

By formula: CF3S- + H+ = CHF3S

Quantity Value Units Method Reference Comment
Δr1400. ± 9.6kJ/molG+TSKoppel, Pihl, et al., 1994gas phase; Possibly dissociative protonation -> CF2S + HF + A-. See CF3O-. G2: 321.0, Burk, Koppel, et al., 2000
Quantity Value Units Method Reference Comment
Δr1370. ± 8.4kJ/molIMREKoppel, Pihl, et al., 1994gas phase; Possibly dissociative protonation -> CF2S + HF + A-. See CF3O-. G2: 321.0, Burk, Koppel, et al., 2000

References

Go To: Top, Reaction thermochemistry data, 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.

Koppel, Pihl, et al., 1994
Koppel, I.A.; Pihl, V.; Koppel, I.A.; Anvia, F.; Taft, R.W., Thermodynamic acidity of (CF3)3CH and 1H-undecafluorobicyclo[2.2.1]heptane: The concept of anionic (fluorine) hyperconjugation, J. Am. Chem. Soc., 1994, 116, 19, 8654, https://doi.org/10.1021/ja00098a027 . [all data]

Burk, Koppel, et al., 2000
Burk, P.; Koppel, I.A.; Rummel, A.; Trummal, A., Can O-H acid be more acidic than its S-H analog? A G2 study of fluoromethanols and fluoromethanethiols, J. Phys. Chem. A, 2000, 104, 7, 1602-1607, https://doi.org/10.1021/jp993487a . [all data]

Spyrou, Hunter, et al., 1984
Spyrou, S.M.; Hunter, S.R.; Christophorou, L.G., Studies of Negative Ion Formation in Fluoroethers and Fluorosulphides using Low-Energy (10 eV) Electron Beam and Electron Swarm Techniques., J. Chem. Phys., 1984, 81, 10, 4481, https://doi.org/10.1063/1.447417 . [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, Reaction thermochemistry data, Gas phase ion energetics data, References