| 3,5-吡啶二羧酸镍配位聚合物的合成与晶体结构 |
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| 引用本文： | 金强,赵娇,石鑫.3,5-吡啶二羧酸镍配位聚合物的合成与晶体结构[J].高等学校化学学报,2010,31(8):1496-1501. |
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| 作者姓名： | 金强 赵娇 石鑫 |
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| 作者单位： | 1. 辽宁师范大学化学化工学院功能材料化学研究所, 大连 116029;
2. 中国科学院大连化学物理研究所催化基础国家重点实验室, 大连 116023 |
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| 摘 要： | 采用水热法合成了3个新的3,5-吡啶二羧酸镍配位聚合物Ni(3,5-Pydc)(H2O)4·H2O]n(1), Ni2(3,5-Pydc)2(H2O)8·(H2O)2]n(2)和Ni(3,5-Pydc)(H2O)2]n(3), 并通过X射线单晶衍射、FTIR及热重分析对其结构和组成进行了表征. 单晶衍射结果表明, 化合物1和2是一维折线型链状结构, 而化合物3是二维层状结构. 化合物1是由3,5-Pydc配体将中心镍离子连接起来形成的折线型一维链. 在化合物2中存在着两条各自独立的折线型一维链, 但它们的配位方式却完全相同, 每一条链都是由3,5-Pydc配体将镍离子连接而成. 而化合物3则是由3个镍离子和3个3,5-Pydc配体形成的二十元环构成的二维网格. 3个化合物分别通过链间或层间氢键作用(O-H…O)形成三维超分子结构, 化合物1和2中的客体水分子被氢键限域在超分子结构之中.
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| 关 键 词： | 配位聚合物 3 5-吡啶二羧酸 晶体结构 |
| 收稿时间： | 2010-02-01 |
Synthesis and Crystal Structure of Nickle 3,5-Pyridinedicarboxylates |
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| JIN Qiang,ZHAO Jiao,SHI Xin.Synthesis and Crystal Structure of Nickle 3,5-Pyridinedicarboxylates[J].Chemical Research In Chinese Universities,2010,31(8):1496-1501. |
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| Authors: | JIN Qiang ZHAO Jiao SHI Xin |
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| Institution: | 1. Institute of Chemistry for Functionalized Materials, Department of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China;
2. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China |
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| Abstract: | Three new nickle 3,5-pyridinedicarboxylates coordination polymers, Ni(3,5-Pydc)(H2O)4·H2O]n(1), Ni2(3,5-Pydc)2(H2O)8·(H2O)2]n(2) and Ni(3,5-Pydc)(H2O)2]n(3) were synthesized by hydrothermal method and characterized by single-crystal X-ray diffraction, FTIR and TGA. X-ray crystallography reveals that both complexes 1 and 2 are 1D zigzag chains, while complex 3 is a 2D layered network. In complex 1, 3,5-Pydc ligand links two different Ni(Ⅱ) into 1D zigzag chain. There are two independent 1D zigzag chains with same coordination mode in complex 2 and each zigzag chain is formed by 3,5-Pydc ligand connecting with Ni(Ⅱ). Complex 3 is a 2D network constructed by twenty-membered rings comprising three Ni(Ⅱ) and three 3,5-Pydc ligands. Furthermore, three compounds form 3D supramolecular frameworks through O—H…O hydrogen bonds among chains or layers. The guest water molecules are defined in supramolecular frameworks of complexes 1 and 2. |
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| Keywords: | Coordination polymer 3 5-Pyridinedicarboxylic acid Crystal structure |
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