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 materials [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 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 {Cu(4,4′-bipy)}nn+ chains into a 3D framework.In compound 3, the [PMo12O40]3− clusters are hung on {Cu(4,4′-bipy)}nn+ chains into a new 1D chain.