Hydrothermal synthesis and crystal structure of a 1D fourfold-chain polyoxometalate-based complex[Cu(4,4'-bipy)]2[SiW12O40{Cu(4,4'-bipy)}4]·(OH)2·H2O

摘要

A novel Keggin unit supported transition metal complex[Cu(4,4'-bipy)]2[SiW12O40{Cu(4,4'-bipy)}4]·(OH)2·H2O(1)(4,4'-bipy=4,4'-bipydine)has been hydrothermally synthesized and structurally characterized by IR spectroscopy,TG analyses and single-crystal X-ray diffraction.The result of the X-ray crystallography analysis exhibits that four{Cu(4,4'-bipy)}_n~(n+)chains simultaneously connect with the[SiW12O40]~(4-)units via W-Ot-Cu bridges constructing an infinitely one-dimensional fourfold-chain structure.