Double salt crystal structure of hexasodium hemiundecahydrogenα-hexamolybdoplatinate(IV) heminonahydrogenα-hexamolybdoplatinate(IV) nonacosahydrate: dihydrogen disordered-mixture double salt

Abstract

The title double salt containing two distinct, differently protonated hexa­molybdoplatinate(IV) polyanions. The polyanion pairs both form dimers of the same formula, viz. {[H10 α-Pt2Mo12O48]}6− connected by seven inter­polyanion O—H⋯O hydrogen bonds.

Is It Possible To Prepare a Heterometal Anderson–Evans Type Anion?

“…The versatility of available heteroatoms, counter cations, and organic ligand types has been expanded during the last years and includes even organic–inorganic hybrid anions of nanometer size . The sheer majority of the Pt-containing POMs is constituted by a series of Pt­(IV)-containing Anderson type structures with various degrees of protonation. ,− The Pt­(IV) atom resides in the center and is surrounded by six oxotungstate addenda (Figure ). There are also a few examples of closely related Rh­(III) and Ir­(IV)-centered Anderson structures. − …”