Construction of Four Coordination Polymers based on 2-[4-(Pyridine-4-yl)phenyl]-1H-imidazole-4,5-dicarboxylic Acid
Construction of Four Coordination Polymers based on 2-[4-(Pyridine-4-yl)phenyl]-1H-imidazole-4,5-dicarboxylic Acid
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基于2-[4-(吡啶-4-基)苯基]-1H-咪唑-4,5-二甲酸的四种配位聚合物的构建
DOI：
10.1002/zaac.201600468
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发表时间：
2017
影响因子：
1.4
通讯作者：
Zhang Wei Guang
中科院分区：
文献类型：
--
作者：
Cai Song Liang;Wang Sha;He Zi Hao;Zhang Kai;Li Mei Lin;Fan Jun;Zheng Sheng Run;Zhang Wei Guang
合成了咪唑基二羧酸配体2-（4-（吡啶-4-基）苯基）-1H-咪唑-4，5-二羧酸（H3 PyPhIDC），并对其配位化学进行了研究. CaII、MnII、CoII和NiIII离子与H3 PyPhIDC的溶剂热反应生成了四种配位聚合物，[Ca（μ3-HPyPhIDC）（H2O）2]n（1）、{[M3（μ2-H2 PyPhIDC）2（μ3-HPyPhIDC）26（H2O）2]·6 H2O}n[M= Mn（2）、Co（3）]和{[Ni（μ3-HPyPhIDC）（H2O）]·H2O}n（4）。通过IR光谱、元素分析以及单晶和粉末X射线衍射分析化合物1 - 4。化合物1显示一维（1D）无限链。化合物2和3具有相似的结构，显示了基于三核簇合物的（4，4）拓扑结构的二维网络结构。化合物4具有另一种类型的2D网络结构，具有3连通（4.82）拓扑。结果表明，金属离子的配位数和几何构型以及H3 PyPhIDC的配位方式和构象均决定了其结构的多样性.此外，还研究了所有化合物的热重分析以及H3 PyPhIDC配体和化合物1的发光性质。
The imidazole‐based dicarboxylate ligand 2‐(4‐(pyridin‐4‐yl)phenyl)‐1H‐imidazole‐4,5‐dicarboxylic acid (H3PyPhIDC), was synthesized and its coordination chemistry was studied. Solvothermal reactions of CaII, MnII, CoII, and NiIIions with H3PyPhIDC produced four coordination polymers, [Ca(μ3‐HPyPhIDC)(H2O)2]n(1), {[M3(μ2‐H2PyPhIDC)2(μ3‐HPyPhIDC)26(H2O)2]·6H2O}n[M= Mn (2), Co (3)], and {[Ni(μ3‐HPyPhIDC)(H2O)]·H2O}n(4). Compounds1–4were analyzed by IR spectroscopy, elemental analyses, and single‐crystal and powder X‐ray diffraction. Compound1displays a one‐dimensional (1D) infinite chain. Compounds2and3are of similar structure, showing 2D network structures with a (4,4) topology based on trinuclear clusters. Compound4has another type of 2D network structure with a 3‐connected (4.82) topology. The results revealed that the structural diversity is attributed to the coordination numbers and geometries of metal ions as well as the coordination modes and conformations of H3PyPhIDC. Moreover, the thermogravimetric analyses of all the compounds as well as luminescence properties of the H3PyPhIDC ligand and compound1were also studied.