Synthesis, Structure, and Luminescent Properties of Two Complexes Based on Flexible Phenylenediacetate Ligand

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英文篇名：Synthesis, Structure, and Luminescent Properties of Two Complexes Based on Flexible Phenylenediacetate Ligand 作者：张美丽 ; 郑艳金 ; 马珍珍 ; 任宜霞 ; 王智香 英文作者：ZHANG Mei-Li;ZHENG Yan-Jin;MA Zhen-Zhen;REN Yi-Xia;WANG Zhi-Xiang;College of Chemistry and Chemical Engineering, Key Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University; 英文关键词：coordination complexes;;crystal structure;;fluorescent properties 中文刊名：JGHX 英文刊名：结构化学(英文版) 机构：College of Chemistry and Chemical Engineering, Key Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University; 出版日期：2019-06-15 出版单位：Chinese Journal of Structural Chemistry 年：2019 期：v.38;No.296 基金：Supported by the Natural Scientific Research Foundation of Shaanxi Provincial Education Office(16JK1864);; the Collaborative Innovation Project of Shaanxi Provincial Science and Technology Office(2016XT-24);; the Natural Science Foundation of Yan’an University(YD2014-06) 语种：英文; 页：JGHX201906020 页数：8 CN：06 ISSN：35-1112/TQ 分类号：178-185

摘要

Two new Zn(Ⅱ) and Cd(Ⅱ) coordination complexes, [Zn(ppda)(idz)]_n(1) and [Cd(mpda)(mbib)]_n(2)(H2 ppda = 1,4-phenylenediacetic acid, H_2 mpda = 1,3-phenylenediacetic acid, idz = imidazole, mbib = 1,3-bis(imidazol-1-ylmethyl)benzene), have been synthesized by using Zn(Ⅱ)/Cd(Ⅱ) salt and phenylenediacetic acid in the presence of different imidazole ligands under hydrothermal conditions, and characterized by elemental analysis, IR spectroscopy, single-crystal X-ray crystallography and thermogravimetric analysis. Complex 1 crystallizes in orthorhombic system, Iba2 space group. The carboxylic acid ligands form a 2 D helical layer with Zn(Ⅱ) ions, and such layers are expanded into a 3 D network structure by the force of C–H×××π. Complex 2 crystallizes in monoclinic system, P2_1/n space group. Complex 2 shows a 3 D framework with two Cd(Ⅱ) ions as nodes of a dual-core unit, which can be considered to be 6-connected net and regarded as a rare(4~4,5~(10),7) topology network with self-interlacing. The structural diversities indicate that rigid and flexible imidazole ligands play dominating roles in modulating the formation of structures of these crystalline materials. Moreover, the luminescent properties of two complexes are investigated in solid state.
        Two new Zn(Ⅱ) and Cd(Ⅱ) coordination complexes, [Zn(ppda)(idz)]_n(1) and [Cd(mpda)(mbib)]_n(2)(H2 ppda = 1,4-phenylenediacetic acid, H_2 mpda = 1,3-phenylenediacetic acid, idz = imidazole, mbib = 1,3-bis(imidazol-1-ylmethyl)benzene), have been synthesized by using Zn(Ⅱ)/Cd(Ⅱ) salt and phenylenediacetic acid in the presence of different imidazole ligands under hydrothermal conditions, and characterized by elemental analysis, IR spectroscopy, single-crystal X-ray crystallography and thermogravimetric analysis. Complex 1 crystallizes in orthorhombic system, Iba2 space group. The carboxylic acid ligands form a 2 D helical layer with Zn(Ⅱ) ions, and such layers are expanded into a 3 D network structure by the force of C–H×××π. Complex 2 crystallizes in monoclinic system, P2_1/n space group. Complex 2 shows a 3 D framework with two Cd(Ⅱ) ions as nodes of a dual-core unit, which can be considered to be 6-connected net and regarded as a rare(4~4,5~(10),7) topology network with self-interlacing. The structural diversities indicate that rigid and flexible imidazole ligands play dominating roles in modulating the formation of structures of these crystalline materials. Moreover, the luminescent properties of two complexes are investigated in solid state.

引文

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