Hydrothermal synthesis and crystal structure of a 1-D compound constructed from molybdovanadate clusters [V2Mo6O26]6? and copper complexes

A 1-D organic–inorganic hybrid compound, {Cu(en)₂}V₂Mo₆O₂₆{Cu(en)₂}₂] · 4H₂O en = ethylenediamine] (1), was hydrothermally synthesized and characterized by IR, UV spectroscopy, TG/DTA analyses, and single crystal X-ray diffraction. The X-ray crystallography analysis reveals an infinitely extended 1-D chain constructed from a molybdovanadate cluster V₂Mo₆O₂₆]^6? as a building unit, two copper(II) complex fragments, {Cu(en)₂}²⁺, as attached groups and a copper(II) fragment, {Cu(en)₂}²⁺, as a bridging group. Each chain links to adjacent chains through weaker secondary Cu–O interactions forming an interesting 3-D supramolecular architecture.