637348-45-9Relevant academic research and scientific papers
Silver(I) Undecafluorodiantimonate(V)
Mazej, Zoran,Benkic, Primoz
, p. 8337 - 8343 (2003)
The reaction between AgBF4 and excess of SbF5 in anhydrous hydrogen fluoride (aHF) yields the white solid AgSb2F 11 after the solvent and the excess of SbF5 have been pumped off. Reaction between equimolar amounts of AgSb2F 11 and AgBF4 yields AgSbF6. Meanwhile, oxidation of solvolyzed AgSb2F11 in aHF by elemental fluorine yields a clear blue solution of solvated Ag(II) cations and SbF 6- anions. AgSb2F11 is orthorhombic, at 250 K, Pbca, with a = 1091.80(7) pm, b = 1246.28(8) pm, c = 3880.2(3) pm, V = 5.2797(6) nm3, and Z = 24. The crystal structure of AgSb2F 11 is related to the already known crystal structure of H 3OSb2F11. Vibrational spectra of AgSb 2F11 entirely match the literature-reported vibrational spectra of β-Ag(SbF6)2, for which a formulation of a mixed-valence Ag(I)/Ag(III) compound was suggested (AgIAg III(SbF6)4). On the basis of obtained results it can be concluded that previously reported β-Ag(SbF6) 2 is in fact Ag(I) compound with composition AgSb2F 11.
