Abstract

From hydrolysis and solution measurements the enthalpies of formation of SbF 5(ℓ), LiSbF 6(s), NaSbF 6(s), KSbF 6(s), CsSbF 6(s), AgSbF 6(s), and SbF 6 −aq. are estimated to be −1324 ± 12, −2062 ± 5, −2060 ± 6, −2080 ± 3, −2082 ± 15, −1653 ± 3, and −1789 ± 4 kJ mol −1 respectively. Less precise estimates of the enthalpies of formation of O 2SbF 6 and of CsSb 3F 16 are also given. From the results the fluoride ion affinity of SbF 5, the single ion hydration enthalpy of SbF 6 − (g), and the charge distribution within the SbF 6 − ion have been calculated.

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