| 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 | |
| Syntheses, Structures, and Magnetic Properties of Three Isostructural Coordination Polymers Based on Quinoline-8-oxy-acetate | |
| 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。 | |
| 关键词: 配位聚合物|异质同晶|层状|磁学|自旋倾斜 | |
| 基金项目: 国家基金委（No.21290173和90922031）资助项目。 | |
| 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. | |
| Keywords: coordination polymer isostructure laminate magnetism spin canting | |
| 投稿时间：2013-09-27 修订日期：2013-11-27 | |
| 摘要点击次数: 2228 | |
| 全文下载次数: 1933 | |
| 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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