Hydrothermal Synthesis and Physicochemical Characterization of Organic-Inorganic Isopolyoxomolybdate-Based Hybrid (C6N6)4[H4Mo8O26]

A novel polyoxomolybdate-based organic-inorganic hybrid compound, (C6H6)4[H4Mo8O26], has been synthesized hydrothermally and characterized structurally by the elemental analysis, single crystal X-ray diffraction, thermogravimetric analysis, infrared and ultraviolet–visible spectroscopies, and cyclic voltammetry. Crystallographic data for the compound are: triclinic system, space group $$P\mathop 1\limits^\_ $$, unit cell parameters a = 9.605(2)  A, b = 9.991(3) A, c = 10.718(3) A, α = 83.75(2)°, β = 76.45(3)°, γ = 69.07(3)°, Z = 1. The crystal consists of the clusters β-[Mo8O26]4– and four organic molecules C6H6. Isopolymolybdate anions are connected with the organic molecules via a complex hydrogen-bonded network, which generate a three-dimensional framework.