两种双核金属锰(Ⅱ)配合物的合成与结构研究

Synthesis and crystal structure of two binuclear Mn(Ⅱ)complexes

在水热和溶剂热条件下,以4,4′-三苯胺二甲酸(H_2L)为有机多齿羧酸,与金属含锰化合物分别与邻菲罗啉和4,4′-二咪唑联苯2种含氮配体反应,合成了2种新型的含金属锰的有机-无机配位聚合物[Mn_2L_2(phen)_2]·DMF(1)和Mn_2L_2(bibp)_2(2).通过X射线单晶衍射确定其结构,并用红外光谱、元素分析、热重和粉末X射线衍射仪等对其进行表征.结果显示配合物1属三斜晶系,Pī空间群,是由一维双链通过π-π共轭作用组装成的三维超分子网络;配合物2属三斜晶系,Pī空间群.是由二维层结构以ABAB层层堆叠的方式形成的三维框架结构.

The multidenate 4,4＇-（phenylazanediyl）dibenzoic acid（H_2L）ligand and manganese（Ⅱ）ions react with 4,4＇-bis（imidazol-1-yl）biphenyl under the hydrothermal conditions or phenanthroline under the solvothermal reactions,two new metal-organic frameworks,namely [Mn_2L_2（phen）_2]·DMF（1）and Mn_2L_2（bibp）_2（2）,are presented along with an analysis of the structural features by single-crystal X-ray diffraction.Compounds 1 and 2 were also characterized by FT-IR spectroscopy,elemental analyses,thermal analysis,and power X-ray diffraction（PXRD）.The results showed that the compound 1 displayed triclinic crystal structure,exhibited a one-dimensional beaded chain conjugation throughπ-πassembled into a 3D framework,with Pīspace group.Compound 2,crystallizes in the triclinic space group Pī,is a 3D framework via the stack of ABAB fashion with two-dimensional layer.