Thiothionyl fluoride


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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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Individual Reactions

Fluorine anion + Thiothionyl fluoride = (Fluorine anion • Thiothionyl fluoride)

By formula: F- + F2S2 = (F- • F2S2)

Quantity Value Units Method Reference Comment
Δr36.0 ± 3.0kcal/molIMRBLarson and McMahon, 1987gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B,M

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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

View reactions leading to F2S2+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
10.41 ± 0.02PILosking and Willner, 1985LBLHLM
10.2PECooper, Kroto, et al., 1984LBLHLM

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
FS+14.53SFPILosking and Willner, 1985LBLHLM
FS2+12.30 ± 0.02FPILosking and Willner, 1985LBLHLM
F2S+13.30 ± 0.07SPILosking and Willner, 1985LBLHLM
S+14.3 ± 0.1SF2PILosking and Willner, 1985LBLHLM
S2+15.42 ± 0.052FPILosking and Willner, 1985LBLHLM

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.

Larson and McMahon, 1987
Larson, J.W.; McMahon, T.B., Trends in Gas Phase Fluoride Ion Affinities of the Main Group Oxyfluorides and Fluoride Sulfides. Fluoride Adducts of FAsO, FPO, FPO2, F2SiO, F4SO, FBO, F2SiS, FPS, FAsS, F2S2, and S2O., Inorg. Chem., 1987, 26, 24, 4018, https://doi.org/10.1021/ic00271a011 . [all data]

Wenthold and Squires, 1995
Wenthold, P.G.; Squires, R.R., Bond dissociation energies of F2(-) and HF2(-). A gas-phase experimental and G2 theoretical study, J. Phys. Chem., 1995, 99, 7, 2002, https://doi.org/10.1021/j100007a034 . [all data]

Losking and Willner, 1985
Losking, O.; Willner, H., Thermochemische daten und photoionisation-massenspektren von SSF2, FSSF, SF3SF und SF3SSF, Z. Anorg. Allg. Chem., 1985, 530, 169. [all data]

Cooper, Kroto, et al., 1984
Cooper, T.A.; Kroto, H.W.; Kirby, C.; Westwood, N.P.C., A photoelectron spectroscopic study of the (FBS)n system (n = 1-3), J. Chem. Soc. Dalton Trans., 1984, 1047. [all data]


Notes

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