Synthesis, Structures, and Luminescent Properties of Uranyl Terpyridine Aromatic Carboxylate Coordination Polymers

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• 作者：Sonia G. Thangavelu ; Michael B. Andrews ; Simon J. A. Pope ; Christopher L. Cahill
• 刊名：Inorganic Chemistry
• 出版年：2013
• 出版时间：February 18, 2013
• 年：2013
• 卷：52
• 期：4
• 页码：2060-2069
• 全文大小：532K
• 年卷期：v.52,no.4(February 18, 2013)
• ISSN：1520-510X

文摘

Six novel uranyl terpyridine aromatic carboxylate coordination polymers, [UO₂(C₆H₂O₄S)(C₁₅H₁₁N₃)] (1), [UO₂(C₆H₂O₄S)(C₁₅H₁₀N₃Cl)]路H₂O (2), [UO₂(C₈H₄O₄)(C₁₅H₁₁N₃)] (3), [UO₂(C₈H₄O₄)(C₁₅H₁₀N₃Cl)] (4), [UO₂(C₁₂H₆O₄)(C₁₅H₁₁N₃)] (5), and [UO₂(C₁₂H₆O₄)(C₁₅H₁₀N₃Cl)] (6), were synthesized under solvothermal conditions and characterized by single-crystal and powder X-ray diffraction and luminescence and UV鈥搗is spectroscopy. Compounds 1, 2, and 5 crystallize as molecular uranyl dimers, whereas compounds 3, 4, and 6 contain ladder motifs of uranyl centers. Fluorescence spectra of 1鈥?b>4 show characteristic UO₂²⁺ emission, wherein bathochromic and hypsochromic shifts are noted as a function of organic species. In contrast, uranyl emission from 5 and 6 is quenched by the naphthalene dicarboxylic acid linker molecules.