Beat over the Old Ground with New Strategy: Engineering As···As Interaction in Arsenite-Based Dawson Cluster β-[W18O54(AsO3)2]6–

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• 作者：Qiuxia Han ; Xueping Sun ; Jie Li ; Pengtao Ma ; Jingyang Niu
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：February 17, 2014
• 年：2014
• 卷：53
• 期：4
• 页码：2006-2011
• 全文大小：396K
• ISSN：1520-510X

文摘

By reaction of [As₂W₁₉O₆₇(H₂O)]^{14鈥?/sup>, NiCl₂路6H₂O, and phen under hydrothermal conditions, a new organic鈥搃norganic tungstoarsenate hybrid [Ni(phen)₃]₄[As₂W₁₈O₆₀]{[Ni(phen)₂][H₂As₂W₁₈O₆₀]}路12H₂O (where phen = 1,10-phenanthroline) (1) was obtained via self-assembly and characterized by elemental analysis, infrared (IR) spectroscopy, solid UV鈥搗is absorption spectrum, and single-crystal X-ray diffraction (XRD). An unprecedented 18-tungstoarsenate Dawson cluster, 尾-[W₁₈O₅₄(AsO₃)₂]6鈥?/sup>, encapsulating two pyramidal arsenite AsO₃3鈥?/sup> anions as templates and exhibiting interesting intramolecular As路路路As interaction is first achieved. 1 displays a one-dimensional (1D) chain architecture constructed by alternating 尾-[W₁₈O₅₄(AsO₃)₂]6鈥?/sup> and nickel(II) complexes [Ni(phen)₂)]2+. The resulting hybrid can act as a photocatalyst to prompt the degradation of Rhodamine B (RhB) with excellent efficiency.}