Low-Dimensional Hybrid Cuprous Halides Directed by Transition Metal Complex: Syntheses, Crystal Structures, and Photocatalytic Properties

详细信息    查看全文

• 作者：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 ; Wan-Dong Chen
• 刊名：Crystal Growth & Design
• 出版年：2015
• 出版时间：November 4, 2015
• 年：2015
• 卷：15
• 期：11
• 页码：5416-5426
• 全文大小：737K
• ISSN：1528-7505

文摘

By using transitional metal (TM) complex cations as structure-directing agents, a series of new hybrid cuprous halides with abundant architectures ranging 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鈥?/sup> chains formed by the interconnection of [Cu₅I₁₀] units via 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 alternately interlinked via edge-sharing to form the 1D [Cu₇I₉]2鈥?/sup> chains. Compound [Cu(2,2-bipy)₂I][(Me)₂-2,2-bipy]Cu₈I₁₁ (7) contains a new 1D [Cu₈I₁₁]3鈥?/sup> chain composed of complex [Cu₈I₁₃] units based on CuI₄ tetrahedra and CuI₃ triangles. Compound [Co(2,2-bipy)₃]Cu₅Br₈ (8) features 1D [Cu₅Br₈]3鈥?/sup> anionic chain built from the interconnection of [Cu₆Br₁₀] units and linear [Cu₄Br₈] tetramers. In compound K[Mn(2,2-bipy)₃]₂Cu₆I₁₁ (9), the [Cu₃I₇] secondary building units are directly interconnected to form 2D [Cu₆I₁₁]5鈥?/sup> layers, which are further interconnected by K+ ions via weak K鈥揑 bonds to generate a 3D [K@Cu₆I₁₁]4鈥?/sup> framework with 1D large channels occupied by [Mn(2,2-bipy)₃]2+ complexes. The UV鈥搗is diffuse reflectance measurements reveal that the title compounds possess semiconductor behaviors with smaller band gaps of 1.44鈥?.95 eV, and samples 4, 5, and 9 show highly efficient photocatalytic degradation activities over organic pollutant than N-doped P25 under visible-light irradiation.}