摘要

A Wells-Dawson type polyoxoanion-based hybrid compound, Cu-9(mu(2)-OH)(4)(mu(3)-OH)(2)(H2O)(8)(Hptz)(8)(P2W18 O-62)(2)center dot 30H(2)O (ptz = 5-(4-pyridyl)-tetrazolate) (1), has been hydrothermally synthesized and characterized by routine methods. In compound 1, a novel nonanuclear copper cluster is constructed from two tetranuclear [Cu-4(mu(2)-OH)(mu(3)-OH)(Hptz)(3)](6+) moieties, linked to each other though one Cu4 ion with the aid of two mu(2)-OH and two ptz ligands. Then the P2W18 polyoxoanions bridge the nonanuclear copper clusters into a ID ladder-like chain, in which the polyoxoanions and nonanuclear clusters act as two sides and middle rail of the ladder, respectively. The 1D chain is extended to a 3D supramolecular structure via hydrogen bonding interactions. The electrochemical property and magnetic behavior of compound 1 have been studied.