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

摘要

Three new organic-inorganic hybrid compounds [Cu-I(2,2'-bipy)(4,4'-bipy)(0.5)](2)[Cu-I(2,2'-bipy)(4,4'-Hbipy)][Cu-I(4,4'-bipy)](2)[P-2-W18O62] center dot 3H(2)O (1), [Cu-I(2.2'-bipy)(4,4'-bipy)(0.5)](2)[Cu-I(4,4'-bipy)](2)[PW12O40] center dot 0.25H(2)O (2), and[Cu-I(4,4'-bipy)](3)[PMo12O40] center dot en center dot 3H(2)O (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 {Cu(4, 4'-bipy)}(n)(n+) chains into a 3D framework. In compound 3, the [PMo12O40](3-) clusters are hung on {Cu(4,4'-bipy)}(n)(n+) chains to form a new 1D chain. (C) 2007 Published by Elsevier B.V.