title: First three-dimensional inorganic-organic hybrid material constructed from an "inverted Keggin" polyoxometalate and a copper(I)-organic complex.
abstract: A new polyoxometalate (POM) based on a flexible bidentate ligand and "inverted Keggin" inorganic building block, namely, [Cu(8)L(8)[Mo(12)O(46)(AsPh)(4)](2)]·H(2)O (1), where L is 1,3-bis(1,2,4-triazol-1-yl)propane, has been synthesized under hydrothermal condition. In 1, the "inverted Keggin" [Mo(12)O(46)(AsPh)(4)](4-) building blocks are linked by the one-dimensional (1D) zigzag [Cu(I)(trans-L)](+) chains and [Cu(I)(4)(cis-L)(4)](4+) macrocycles to yield a three-dimensional (3D) framework. The compound 1 represents the first 3D "inverted Keggin" polyoxometalate modified by a transition-metal complex. Topologically, the 3D framework can be considered as an 8-connected net with a Schläfli symbol of 4(22)·6(6). As far as we know, compound 1 is the highest-connected uninodal network topology presently known for POM-based materials. The compound was characterized by its IR spectrum, UV-vis spectrum, thermogravimetric analysis (TGA), and powder X-ray diffraction (XRD) patterns. Remarkably, compound 1 exhibits photocatalytic activity for dye degradation under visible light irradiation and shows good stability toward visible-light photocatalysis.
authors.affiliation: Key Laboratory of Polyoxometalate Science, Department of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.forename: Zhen-Tao
authors.initials: ZT
authors.lastname: Yu
authors.forename: Jin
authors.initials: J
authors.lastname: Yang
authors.forename: Wu
authors.initials: W
authors.lastname: Hua
authors.forename: Ying-Ying
authors.initials: YY
authors.lastname: Liu
authors.forename: Jian-Fang
authors.initials: JF
authors.lastname: Ma