1. Low-Dimensional Hybrid Cuprous Halides Directed byTransition Metal Complex: Syntheses, Crystal Structures, and PhotocatalyticProperties.
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Xiao-Wu Lei, Cheng-Yang Yue, Jian-Qiang Zhao, Yong-Fang Han, Jiang-Tao Yang, Rong-Rong Meng, Chuan-Sheng Gao, Hao Ding, Chun-Yan Wang, and Wan-Dong Chen
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HALOGEN compounds , *HALIDES , *CATIONS , *TETRAHEDRA , *PHOTOCATALYTIC oxidation - Abstract
By using transitional metal (TM)complex cations as structure-directingagents, a series of new hybrid cuprous halides with abundant architecturesranging from one-dimensional (1D) ribbons to two-dimensional (2D)layers have been solvothermally prepared and structurally characterized.Compounds [TM(2,2-bipy)3]Cu5I7(TM= Fe (1), Co (2), and Ni (3)) feature 1D [Cu5I7]2–chainsformed by the interconnection of [Cu5I10] unitsvia edge-sharing. In compounds [TM(2,2-bipy)2I]2Cu7I9(TM = Mn (4), Cu (5), and Ru (6)), the [Cu5I9] units and [Cu2I6] dimers are alternatelyinterlinked via edge-sharing to form the 1D [Cu7I9]2–chains. Compound [Cu(2,2-bipy)2I][(Me)2-2,2-bipy]Cu8I11(7) containsa new 1D [Cu8I11]3–chaincomposed of complex [Cu8I13] units based onCuI4tetrahedra and CuI3triangles. Compound[Co(2,2-bipy)3]Cu5Br8(8) features 1D [Cu5Br8]3–anionicchain built from the interconnection of [Cu6Br10] units and linear [Cu4Br8] tetramers. In compoundK[Mn(2,2-bipy)3]2Cu6I11(9), the [Cu3I7] secondary buildingunits are directly interconnected to form 2D [Cu6I11]5–layers, which are further interconnectedby K+ions via weak K–I bonds to generate a 3D [K@Cu6I11]4–framework with 1D largechannels occupied by [Mn(2,2-bipy)3]2+complexes.The UV–vis diffuse reflectance measurements reveal that thetitle compounds possess semiconductor behaviors with smaller bandgaps of 1.44–1.95 eV, and samples 4, 5, and 9show highly efficient photocatalytic degradationactivities over organic pollutant than N-doped P25 under visible-lightirradiation. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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