A 2D Lanthanide-organic Framework Based on Inorganic Lanthanum(Ⅲ) Sulfate Skeletons:Synthesis,Structure,and Luminescence and Thermal Properties |
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引用本文: | 冯勋,张改,张荣兰,孙倩倩,赵建社.A 2D Lanthanide-organic Framework Based on Inorganic Lanthanum(Ⅲ) Sulfate Skeletons:Synthesis,Structure,and Luminescence and Thermal Properties[J].结构化学,2011,30(1):144-150. |
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作者姓名: | 冯勋 张改 张荣兰 孙倩倩 赵建社 |
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作者单位: | Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education;College of Chemistry and Materials;Northwest University;College of Chemistry and Chemical Engineering;Luoyang Normal University; |
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基金项目: | supported by the National Natural Science Foundation of China (No.20971104); the Ph. D. Programs Foundation of Ministry of Education of China (No.200806970008); the Foundation of Education Committee of Henan Province (No.2010A150016); the Tackle Key Problem of Science and Technology Project of Henan Province (No.102102210450) |
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摘 要: | A new lanthanum coordination polymer formulated as {La2(pyda) 2(μ4-SO4) ·5H2O]· 2H2O}n(1,H2pyda = 2,6-pyridine-dicarboxylic acid) has been synthesized from the reaction of H2pyda with lanthanide nitrate in the presence of sulfate as a counter anion. The compound was characterized by elemental analysis,IR spectroscopy and X-ray single-crystal diffraction. It crystallizes in the orthorhombic system,space group Pna21,with a = 18.8558(19) ,b = 6.5831(7) and c = 18.7543(19) . The compound is a 2D hybrid,in which the La(Ⅲ) ions were doubly connected by the carboxylic group of pyda2-ligand to form the La(Ⅲ) dimer followed by being grafted into 1D zig-zag chains which are further connected into a 2D network containing {La(SO4) ]+}n helical chains. The interchain hydrogen bonding and π-π stacking interactions extended the 2D networks into a 3D supramolecular edifice.
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关 键 词: | 二维网络 硫酸镧 有机无机 发光性能 稀土 合成 硫酸根离子 骨架 |
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