| 三个异质同晶喹啉-8-氧醚乙酸配位聚合物的合成、结构及磁性质 |
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| 引用本文： | 程小宁,张伟雄,薛玮,陈小明.三个异质同晶喹啉-8-氧醚乙酸配位聚合物的合成、结构及磁性质[J].无机化学学报,2014,30(1):142-148. |
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| 作者姓名： | 程小宁 张伟雄 薛玮 陈小明 |
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| 作者单位： | 中山大学化学与化学工程学院/教育部生物无机与合成化学重点实验室, 广州 510275;中山大学测试中心, 广州 510275;中山大学化学与化学工程学院/教育部生物无机与合成化学重点实验室, 广州 510275;中山大学化学与化学工程学院/教育部生物无机与合成化学重点实验室, 广州 510275;中山大学化学与化学工程学院/教育部生物无机与合成化学重点实验室, 广州 510275 |
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| 基金项目： | 国家基金委（No.21290173和90922031）资助项目。 |
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| 摘 要： | 本文通过溶剂热反应合成了3个异质同晶的配位聚合物Ni(8-qoac)Cl]n(1,8-Hqoac=喹啉-8-氧醚乙酸),Fe(8-qoac)Cl]n(2)和Mn(8-qoac)Cl]n(3)。单晶结构分析表明,这些配合物结晶在Pbca空间群中,其中八面体配位的金属离子首先被2个氯离子桥连形成1个双核结构,双核单元再通过4个反-反配位模式的羧酸根与4个相邻的双核单元连接,形成1个以双核为节点的(4,4)网二维层状结构。磁学表征发现化合物1表现出类自旋倾斜的磁行为,而2和3只表现出简单的反铁磁行为,表明了金属离子的各向异性等特点对磁学行为会产生重要的影响。
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| 关 键 词： | 配位聚合物 异质同晶 层状 磁学 自旋倾斜 |
| 收稿时间： | 2013/9/27 0:00:00 |
| 修稿时间： | 2013/11/27 0:00:00 |
Syntheses, Structures, and Magnetic Properties of Three Isostructural Coordination Polymers Based on Quinoline-8-oxy-acetate |
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| CHENG Xiao-Ning,ZHANG Wei-Xiong,XUE Wei and CHEN Xiao-Ming.Syntheses, Structures, and Magnetic Properties of Three Isostructural Coordination Polymers Based on Quinoline-8-oxy-acetate[J].Chinese Journal of Inorganic Chemistry,2014,30(1):142-148. |
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| Authors: | CHENG Xiao-Ning ZHANG Wei-Xiong XUE Wei and CHEN Xiao-Ming |
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| Institution: | MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry & Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China;Instrumental Analysis and Research Center, Sun Yat-Sen University, Guangzhou 510275, China;MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry & Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China;MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry & Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China;MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry & Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China |
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| Abstract: | Three isostructural coordination polymers, namely Ni(8-qoac)Cl]n (1, 8-Hqoac=quinoline-8-oxy-acetic acid), Fe(8-qoac)Cl]n (2), and Mn(8-qoac)Cl]n (3) were synthesized under solvothermal reaction conditions. Single-crystal X-ray diffraction studies showed that 1~3 crystallize in the same space group Pbca, in which the octahedral metal ions are first bridged by two chloride ions to form a dinuclear building blocks, and then each dinuclear building block is connected to four adjacent neighbors via four carboxylate groups with the anti-anti coordination mode, giving a two-dimensional layered (4, 4) network considering the dinuclear building blocks as 4-connected nodes and the carboxylate groups as linkers. Magnetic measurements revealed spin-canting-like behaviors for compound 1, while 2 and 3 only exhibit simple antiferromagnetic properties, which can be explained by the different magnetic anisotropic behaviors of the transition metal ions. |
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| Keywords: | coordination polymer isostructure laminate magnetism spin canting |
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