On the Commonality of Speciation of Inorganic Solutes in Superacids, Strong Bases, Molten Salts, and Water

Crystal structures of KM(AsF6)3 (M2+ = Mg, Co, Mn, Zn), KCu(SbF6)3 and [Co(HF)2]Sr[Sr(HF)]2[Sr(HF)2]2[AsF6]12

“…Group IV includes rest of examples of HF-containing compounds which could not be classified in one of the previous groups. The importance of Groups II and III is connected to the fact that anhydrous HF (aHF) is the most suitable solvent in inorganic fluorine chemistry [40,41] either for the preparation of highlyreducing stable monatomic transition metal cations in very low oxidation states, such as Ti 2+ and Sm 2+ , which reduce H 2 O, or of highly oxidising transition metal solvoanions with the metals in very high oxidation states, such as [NiF 6 ] 2-and [AgF 4 ] -which oxidise water [41]. For a long time aHF was treated as the non-coordinating or weakly coordinating solvent.…”

Silver(I) Undecafluorodiantimonate(V)

“…10 From literature data it is well-known that increased acidity of aHF favors a low oxidation state in the cation. 47,[48][49][50] The preparation and crystal structure determination of other ASb 2 F 11 compounds (A ) monovalent cation) are in progress.…”

“…When an large excess of SbF 5 was added to α-Ag(SbF 6 ) 2 , it was irreversibly converted in aHF to a white insoluble solid ,− …”

Synthesis and crystal structures of HgFAsF6, Hg(HF)2(AsF6)2, Hg(HF)(AsF6)2 and Hg(AsF6)(SO3F)

“…Since UV-visible spectra show that, in solutions of MF 2 in aHF acidified with Lewis acids (AsF 5 , BF 3 , etc. ), metal centres are coordinated by HF molecules [29,30]; this is not surprising. Coordinated HF can be partly or completely removed from the first coordination sphere during isolation of the solids products.…”