2,2’-联吡啶-5,5’-二羧酸Cu~Ⅱ配合物的构筑、结构及性质研究

Syntheses, structures and properties of Cu~Ⅱ complex with 2, 2’-bipyridine-5, 5’-dicarboxylic acid

利用2,2’-联吡啶-5,5’-二羧酸、氧化铜和高氯酸在水热条件下得到了一个有趣的铜配合物[Cu(H2bpdc)].ClO4(1)(H2bpdc=2,2’-联吡啶-5,5’-二羧酸).对其进行X射线单晶衍射,利用SHELXTL软件解析其结构,单晶结构分析表明配合物1为零维结构,分子间存在着丰富的氢键,通过氢键和弱的π-π相互作用使得配合物1形成一个三维网状结构.对配合物1和配体的固体荧光对比研究表明,配体与金属CuII离子配位后发生了荧光淬灭现象.利用热重分析研究了配合物1的热稳定性及热分解与晶体结构的关系.对开发新型多维有机金属框架结构及新型荧光材料具有一定的指导和借鉴意义.

In this paper,a copper complex by using 2,2’-bipyridine-5,5’-dicarboxylic acid,copper oxide and perchloric acid through hydrothermal method are obtained.X-ray diffraction and SHELXTL software was used to analyze the structure of the complex [Cu（H2bpdc）].ClO4（1） and the result shows that the complex 1 is a zero-dimensional structure.In complex 1,there are many hydrogen bonds between molecules,which results in a three-dimensional network structure through hydrogen bonds and π-π interaction.The solid fluorescence studies have shown that the phenomenon of fluorescence is quenching after the ligand coordination with the CuII ion.Thermo gravimetric analysis is used to study the thermal stability of the complex 1 and the relationship between thermal decomposition and the crystal structure.The research provides guidance and reference for exploiting new multi-dimensional organic metal frame structures and fluorescent materials.