Hybrid organic–inorganic assemblies built up from saturated heteropolyoxoanions and copper coordination polymers with mixed 4,4′-bipyridine and 2,2′-bipyridine ligands

Three new organic–inorganic hybrid compounds [CuI(2,2′-bipy)(4,4′-bipy)0.5]2[CuI(2,2′-bipy)(4,4′-Hbipy)][CuI(4,4′-bipy)]2[P2W18O62] · 3H2O (1), [CuI(2,2′-bipy)(4,4′-bipy)0.5]2[CuI(4,4′-bipy)]2[PW12O40] · 0.25H2O (2), and[CuI(4,4′-bipy)]3[PMo12O40] · en · 3H2O (3) (2,2′- bipy = 2,2′-bipyridine, 4,4′-bipy = 4,4′-bipyridine), have been hydrothermally synthesized. Compound 1 represents the first 1D ladderlike structure formed by Dawson-type polyoxoanion [P2W18O62]6− and coordination polymer with mixed 4,4′-bipy and 2,2′-bipy ligands. The novel structure of 2 is composed of 1D hybrid zigzag chains linked by View the MathML source{Cu(4,4′-bipy)}nn+ chains into a 3D framework. In compound 3, the [PMo12O40]3− clusters are hung on View the MathML source{Cu(4,4′-bipy)}nn+ chains to form a new 1D chain.