Synthesis and structure of penta­kis­(2-aminopyridinium) nona­vanado(V)tellurate(VI)

Abstract

In the title compound, the tellurium(VI) and vanadium(V) atoms are statistically disordered over two of the ten metal-atom sites in the unprotonated [TeV₉O₂₈]^5– heteropolyanion.

In the title compound, (C₅H₇N₂)₅[TeV₉O₂₈], the tellurium and vanadium atoms are statistically disordered over two of the ten metal-atom sites in the [TeV₉O₂₈]^5– heteropolyanion. The anions stack along [100] and are extended into a three-dimensional supra­molecular network through N—H⋯O and weak C—H⋯O hydrogen bonds involving the self-assembled 2-amino­pyridinium penta­mers, which are linked by C—H⋯π and π–π stacking inter­actions. The most important contributions to the Hirshfeld surface arise from O⋯H/H⋯O (54.8%), H⋯H (17.8%) and C⋯H/H⋯C (13.4%) contacts.