Syntheses and Crystal Structures of Three Coordination Complexes Based on Ln(Ⅲ) and mpca-Ligand |
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作者姓名: | XU Ji-Gui LU Zhen-Zhong ZHUO Xin ZHENG He-Gen |
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作者单位: | XU Ji-Gui(State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering,Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China; Anhui Key Laboratory of Spin Electron and Nanomaterials Cultivating Base,Department of Chemistry & Biology, Suzhou University, Suzhou 234000, China);LU Zhen-Zhong(State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering,Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China);ZHUO Xin(Anhui Key Laboratory of Spin Electron and Nanomaterials Cultivating Base,Department of Chemistry & Biology, Suzhou University, Suzhou 234000, China);ZHENG He-Gen(State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering,Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China ;State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China) |
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基金项目: | the National Natural Science Foundation of China,National Basic Research Program of China,the Young Teachers Program of College in Anhui Province,the Natural Science Foundation of Anhui Province |
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摘 要: | Three complexes obtained by the reaction of Pr(Ⅲ) or Nd(Ⅲ) salts with 5-methyl-2-pyrazinecarboxylic acid(Hmpca) are structurally determined by single-crystal X-ray diffraction.Complex [Pr(mpca-)3(H2O)2]2·6H2O(1) is composed of dinuclear Pr(Ⅲ) units with two metal centers bridged by two anionic mpca-ligands in a κ3O,O':O' bridging mode.Complexes [Pr(mpca-)3]n(2) and [Nd(mpca-)3]n(3) are isostructures,and they consist of polymeric chains based on Ln(Ⅲ) and mpca-ligands.Each pair of adjacent metal centers is linked by three mpca-molecules in a κ3N,O:O bridging mode.
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关 键 词: | mpca 晶体结构 协调配合 配体 稀土 基础 合成 高分子链 |
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