基于2-甲基-1H-咪唑二羧酸锰(Ⅱ)的配位化合物的合成、结构研究（英文）  

Synthesis and crystal structure of one Mn(Ⅱ) coordination compound based on 2-methyl-1H-imidazole-4,5-dicarboxylic acid

作　　者：李亚敏[1] 吴莹莹 李雪飞[1] 李海燕[1] 刘影 金邻豫[1] LI Yamin;WU Yingying;LI Xuefei;LI Haiyan;LIU Ying;JIN Linyu(Henan Key Laboratory of Polyoxometalate,College of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,Henan,China)

机构地区：[1]河南大学化学化工学院多酸化学实验室,河南开封475004

出　　处：《化学研究》2018年第4期369-375,共7页Chemical Research

基　　金：Supported by the Natural Science Foundation of China(U1504209,21403053);Young Backbone Teacher Project of Henan Colleges and Universities(2016GGJS-023);Foundation of Henan University(0000A40478)

摘　　要：通过水热合成的方法,以2-甲基-1H-咪唑二羧酸,2,4-二氨基-6-甲基-1,3,5-三嗪和MnCl2·4H_2O为原料合成了一种配位化合物Mn(L)2(H_2O)2(HL=2-甲基-1H-咪唑二羧酸),并通过红外光谱(IR)、元素分析、X射线单晶衍射、粉末X射线衍射(PXRD)和热重分析(TGA)对其结构进行了表征. X射线单晶衍射的结果表明,该单核化合物属于Pbca空间群,正交晶系.单核化合物中心的金属离子Mn(Ⅱ)与四个氧和两个氮配位形成扭曲的八面体构型,并通过四种不同氢键的相互作用最终形成了三维网状结构.A coordination compound, namely, Mn（L） 2 （H 2 O） 2 （HL = 2-methyl- 1H-imidazole- 4,5-dicarboxylic acid） was synthesized under hydrothermal condition by using 2-methyl-1H-imidazole-4,5-dicarboxylic acid, 2,4-diamino-6-methyl-1,3,5-triazine as well as MnCl 2 ·4H 2 O, and its structure was characterized by IR spectra, elemental analysis, X-ray single-crystal diffraction, powder X-ray diffraction （PXRD） and thermogravimetric analysis （TGA）. The X-ray single-crystal diffraction proves that the compound is a mononuclear compound with orthorhombic system Pbca space group, in which Mn（Ⅱ） at the center is coordinated by four oxygen atoms and two nitrogen atoms to form a distorted octahedron configuration, and further connected to a three-dimensional （3D） network structure through the interactions of four kinds of hydrogen bonds.

关 键 词：配位化合物 Mn(Ⅱ) 咪唑二羧酸 氢键 

分 类 号：O614[理学—无机化学]