基于咪唑羧酸配体镉(Ⅱ)配合物的合成、结构调控及其性质表征 |
Synthesis, Structure Regulation and Characterization of Cadmium(Ⅱ) Complexes Based on Imidazole Carboxylic Acid Ligands |
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摘要: 利用水热法,以2-(4-羧基-苯基)咪唑-4,5-二羧酸(H3L)为主配体,在辅配体1,10-菲咯啉(1,10-phen)和1,4-二(1-咪唑基)苯(dib)的调控作用下得到2个新的镉(Ⅱ)配合物:[Cd2(HL)2(1,10-phen)2(H2O)2](1),{[Cd (HL)(dib)0.5(H2O)2]·2H2O}n(2)。并通过单晶X射线衍射、元素分析、热重分析、粉末X射线衍射、红外光谱、Hirshfeld表面分析和密度泛函理论量化计算对1和2进行了分析和表征。配合物1和2均属于三斜晶系和P1空间群,且1为零维结构,2为一维链状结构。 |
关键词: 咪唑羧酸配体 镉(Ⅱ)配合物 结构调控 表征 |
基金项目: 国家自然科学基金(No.21761030)、甘肃省高校研究基金(No.2019A-032)、天津大学-兰州交通大学独立创新基金(No.2020060)和大学生创新培训计划(No.2020033)资助。 |
Abstract: Two new cadmium(Ⅱ) complexes were synthesized by hydrothermal method with 2-(4-carboxy-phenyl)-imidazole-4,5-dicarboxylic acid (H3L) through the auxiliary ligands 1,10-phenanthroline(1,10-phen) and 1,4-bis(1-imidazolyl) benzene(dib) coordination regulation effect,[Cd2(HL)2(1,10-phen)2(H2O)2] (1) and {[Cd(HL)(dib)0.5(H2O)2]·2H2O}n (2). 1 and 2 were analyzed and characterized by single crystal X-ray diffraction, element analysis, thermo-gravimetric analysis, powder X-ray diffraction, infrared spectroscopy, Hirshfeld surface analysis, and density functional theory quantification calculations. Single crystal X-ray diffraction shows that 1 and 2 belong to the triclinic system and the P1 space group, and 1 forms a zero-dimensional structure, 2 forms a one-dimensional chain structure. |
Keywords: imidazole carboxylic acid ligand cadmium(Ⅱ) complexes structure regulation characterization |
投稿时间:2021-04-03 修订日期:2021-08-31 |
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熊鼎奇,傅鹏鲲,李雨燕,张小雨,杨青林,贾梅梅,朱艳艳,董秀延.基于咪唑羧酸配体镉(Ⅱ)配合物的合成、结构调控及其性质表征[J].无机化学学报,2021,37(11):2079-2091. |
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