Syntheses, Structures and Photoluminescence of Three Cd(II) Coordination Polymers Based on Flexible Bis(Benzimidazole) and Dicarboxylate Ligands

Wang Xiao-xiao; Hao Jin-ming; Li Guang-yue; Cui Guang-hua

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Syntheses, Structures and Photoluminescence of Three Cd(II) Coordination Polymers Based on Flexible Bis(Benzimidazole) and Dicarboxylate Ligands

机译：柔性双苯并咪唑和二羧酸配体的三种Cd（II）配位聚合物的合成，结构和光致发光

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Three new Cd(II) coordination polymers constructed from two structurally related ligands, 1,1'-(1,3-propane) bis-(2-methylbenzimidazole) (pbmb) and 1,1'(1,4-butanediyl)bis(2-methyl-benzimidazole) (bbmi), have been hydrothermally synthesized: [Cd(pbmb)(hmph)](n) (1), [Cd(pbmb)(chdc)](n) (2) and [Cd(bbmi)(0.5)(chdc)](n) (3), where H2hmph = homophthalic acid and H(2)chdc = 1,4-cyclohexanedicarboxylic acid. These complexes were structurally characterized by elemental analysis, IR, and single crystal X-ray diffraction analyses. Complex 1 possesses a two-dimensional 6(3) honeycombed network structure, which are further extended into a 3D supermolecule framework through weak C-H center dot center dot center dot O hydrogen bonding interactions. 2 displays an infinite 1D loop-like chain structure, which is further assembled into a 2D supramolecular layer via C-H center dot center dot center dot O hydrogen bonding interactions. In complex 3, Cd-II ions are connected by chdc(2-) anions to form a 1D chain containing binuclear clusters, which is further connected by the bbmi exhibiting a 2D (3,4)-connected network with a point symbol of {4(2).6(3).8}{4(2).6}. The thermal and photoluminescence properties of the three complexes were investigated in detail.

机译：由两个结构相关的配体，1,1'-（1,3-丙烷）双-（2-甲基苯并咪唑）（pbmb）和1,1'（1,4-丁二基）双构造的三种新型Cd（II）配位聚合物（2-甲基-苯并咪唑）（bbmi）已通过水热合成：[Cd（pbmb）（hmph）]（n）（1），[Cd（pbmb）（chdc）]（n）（2）和[Cd （bbmi）（0.5）（chdc）]（n）（3），其中H2hmph =高邻苯二甲酸，H（2）chdc = 1,4-环己烷二甲酸。通过元素分析，红外光谱和单晶X射线衍射分析对这些配合物进行结构表征。配合物1具有二维6（3）蜂窝网络结构，通过弱C-H中心点中心点中心点O氢键相互作用将其进一步扩展为3D超分子框架。图2显示了无限的一维环状链结构，其通过C-H中心点中心点中心点O氢键相互作用进一步组装成2D超分子层。在络合物3中，Cd-II离子通过chdc（2-）阴离子连接以形成包含双核簇的1D链，该链进一步通过bbmi连接，该bbmi显示2D（3,4）连接的网络，其点符号为{ 4（2）.6（3）.8} {4（2）.6}。详细研究了三种配合物的热和光致发光性质。

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《Journal of chemical crystallography》 |2015年第2期|共9页
作者
Wang Xiao-xiao; Hao Jin-ming; Li Guang-yue; Cui Guang-hua;
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正文语种 eng
中图分类晶体学;
关键词
Bis(benzimidazole); Flexible carboxylate; Cd(II) complexes; Photoluminescence property;

机译：双（苯并咪唑）;柔性羧酸盐;Cd（II）配合物;光致发光性能;

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1. Syntheses, Structures and Photoluminescence of Three Cd(II) Coordination Polymers Based on Flexible Bis(Benzimidazole) and Dicarboxylate Ligands [J] . Wang Xiao-xiao, Hao Jin-ming, Li Guang-yue, Journal of chemical crystallography . 2015,第2期

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3. Syntheses, structures, and photoluminescence of three cadmium(II) coordination polymers with flexible bis(benzimidazole) ligands [J] . CUI-HUAN JIAO, CUI-HONG HE, JIAN-CHEN GENG Journal of Coordination Chemistry . 2012,第15a16期

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Syntheses, Structures and Photoluminescence of Three Cd(II) Coordination Polymers Based on Flexible Bis(Benzimidazole) and Dicarboxylate Ligands

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