Abstract

A new ferrous molybdenum(V) phosphate, [H2deta]4[H3O]{Na[FeIIMo 12 V O24(OH)6(HPO4)6(PO4)2]}·6H2O 1 (deta = diethylenetriamine) has been prepared under hydrothermal condition and thoroughly characterized by IR, UV–Vis spectroscopy, elemental analyses, single–crystal X-ray diffraction, powder XRD and TG–DTA. The structural analysis reveals that isolated V-shaped water trimers and protonated diethylenetriamine molecules coexist in the crystal lattice of 1 and form an unprecedented 1-D strip-like arrangement via hydrogen bonding interactions. The strip-like arrangement further interacts through intermolecular non-covalent interactions with its surroundings, viz., the new 1-D inorganic anionic chain constructed by the versatile Fe[Mo6P4O31] building blocks which is covalently connected with NaO6 octahedra, and finally results in a supramolecular entity that is favourable in terms of packing efficiency and system energy minimization. The electrochemical properties of the compound 1 is also investigated by voltammetric method.

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