Sulfur hexafluoride anion


Gas phase thermochemistry 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

Quantity Value Units Method Reference Comment
Δfgas-315.6 ± 2.3kcal/molR-EAGrimsrud, Chowdhury, et al., 1985ΔGea(423 K) = -29.8 kcal/mol; ΔSea = +13 eu. See also Chowdhury, Heinis, et al., 1986, Bopp, Roscioli, et al., 2007
Δfgas<-313.00kcal/molCIDTRefaey and Franklin, 1978 

Reaction thermochemistry 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

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Individual Reactions

F6S- + Sulfur hexafluoride = (F6S- • Sulfur hexafluoride)

By formula: F6S- + F6S = (F6S- • F6S)

Quantity Value Units Method Reference Comment
Δr2.30 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff=+0.37 at 141K
Quantity Value Units Method Reference Comment
Δr-3.10 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff=+0.37 at 141K

F6S- + Benzene, 1-fluoro-3-nitro- = (F6S- • Benzene, 1-fluoro-3-nitro-)

By formula: F6S- + C6H4FNO2 = (F6S- • C6H4FNO2)

Quantity Value Units Method Reference Comment
Δr15.7 ± 1.0kcal/molTDAsChowdhury and Kebarle, 1986gas phase
Quantity Value Units Method Reference Comment
Δr7.9 ± 1.6kcal/molTDAsChowdhury and Kebarle, 1986gas phase

F6S- + Benzene, 1-nitro-3-(trifluoromethyl)- = (F6S- • Benzene, 1-nitro-3-(trifluoromethyl)-)

By formula: F6S- + C7H4F3NO2 = (F6S- • C7H4F3NO2)

Quantity Value Units Method Reference Comment
Δr17.0 ± 1.0kcal/molTDAsChowdhury and Kebarle, 1986gas phase
Quantity Value Units Method Reference Comment
Δr9.0 ± 1.6kcal/molTDAsChowdhury and Kebarle, 1986gas phase

F6S- + Benzene, nitro- = (F6S- • Benzene, nitro-)

By formula: F6S- + C6H5NO2 = (F6S- • C6H5NO2)

Quantity Value Units Method Reference Comment
Δr14.9 ± 1.0kcal/molTDAsChowdhury and Kebarle, 1986gas phase
Quantity Value Units Method Reference Comment
Δr6.7 ± 1.6kcal/molTDAsChowdhury and Kebarle, 1986gas 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.

Grimsrud, Chowdhury, et al., 1985
Grimsrud, E.P.; Chowdhury, S.; Kebarle, P., Electron affinity of SF6 and perfluoromethylcyclohexane. The unusual kinetics of electron transfer reactions A- + B- + A, where A = SF6 or perfluorinated cycloalkanes, J. Chem. Phys., 1985, 83, 1059. [all data]

Chowdhury, Heinis, et al., 1986
Chowdhury, S.; Heinis, T.; Grimsrud, E.P.; Kebarle, P., Entropy Changes and Electron Affinities from Gas-Phase Electron Transfer Equilibria: A- + B = A + B-, J. Phys. Chem., 1986, 90, 12, 2747, https://doi.org/10.1021/j100403a037 . [all data]

Bopp, Roscioli, et al., 2007
Bopp, J.C.; Roscioli, J.R.; Johnson, M.A.; Miller, T.M.; Viggiano, A.A.; Villano, S.M.; Wren, S.W.; Lineberger, Spectroscopic characterization of the isolated SF6- and C4F8- anions: Observation of very long harmonic progressions in symmetric deformation modes upon photodetachment, J. Phys. Chem. A, 2007, 111, 7, 1214-1221, https://doi.org/10.1021/jp0665372 . [all data]

Refaey and Franklin, 1978
Refaey, K.M.A.; Franklin, J.L., Collisonal decomposition of SF6-, Int. J. Mass Spectrom. Ion Phys., 1978, 26, 125. [all data]

Hiraoka, Shimizu, et al., 1995
Hiraoka, K.; Shimizu, A.; Minamitsu, A.; Nasu, M.; Fujimaki, S.; Yamabe, S., The small binding energies of the negative cluster ions: SF5-(SF6)1, SF6-(SF6)1 and F-(SF6)n (n=1 and 2), in the gas phase, Chem. Phys. Lett., 1995, 241, 5-6, 623, https://doi.org/10.1016/0009-2614(95)00676-U . [all data]

Chowdhury and Kebarle, 1986
Chowdhury, S.; Kebarle, P., Role of Binding Energies in A-.B and A.B- Complexes in the Kinetics of Gas Phase Electron Transfer Reactions:A- + B = A + B- Involving Perfluoro Compounds: SF6, C6F11CF3, J. Chem. Phys., 1986, 85, 9, 4989, https://doi.org/10.1063/1.451687 . [all data]


Notes

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