CF3SO3 anion
- Formula: CF3O3S-
- Molecular weight: 149.070
- Information on this page:
- Other data available:
- Options:
Gas phase ion energetics data
Go To: Top, Ion clustering 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 |
|---|---|---|---|
| >5.299963 | LPD | Herd, Misth, et al., 1989 | No detachment with 5.49 eV photons |
| >4.90 ± 0.20 | IMRB | Viggiano, Paulson, et al., 1987 | ΔGacid: CF3SO3H<FSO3H<H2SO4<HPO3<HI, ΔGacid(CF3SO3H)<313.6 kcal |
Protonation reactions
CF3O3S- + = CHF3O3S
By formula: CF3O3S- + H+ = CHF3O3S
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1278. ± 9.2 | kJ/mol | G+TS | Koppel, Taft, et al., 1994 | gas 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 |
| ΔrH° | <1312. ± 8.4 | kJ/mol | EIAE | Adams, Smith, et al., 1986 | gas phase; From CF3SO3H,anhydride |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1253. ± 8.4 | kJ/mol | IMRE | Koppel, Taft, et al., 1994 | gas 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 |
| ΔrG° | 1250. ± 10. | kJ/mol | IMRB | Viggiano, Henchman, et al., 1992 | gas phase |
Ion clustering 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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
CF3O3S- + = (CF3O3S- •
)
By formula: CF3O3S- + H2O = (CF3O3S- • H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 48.5 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 19.2 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
(CF3O3S- • ) +
= (CF3O3S- • 2
)
By formula: (CF3O3S- • H2O) + H2O = (CF3O3S- • 2H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 45.2 ± 6.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 15.9 ± 1.3 | kJ/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K |
References
Go To: Top, Gas phase ion energetics data, Ion clustering data, Notes
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]
Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P.,
Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I,
J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
EAneutral Electron affinity of neutral species ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.