2,3’,4,5’-联苯四羧酸、邻菲罗啉与Cu(Ⅱ)构筑的超分子化合物的合成、结构与热性能

Supramolecular compound based on 2,3',4,5'-biphenyltetracarboxylic acid,1,10-phenanthroline and Cu(Ⅱ):synthesis,crystal structure and thermal performance

以2,3’,4,5’-联苯四羧酸(2,3’,4,5’-biphenyltetracarboxylic acid,H4bptc)、邻菲罗啉(1,10-phenanthroline,phen)为有机配体,与Cu(Ⅱ)盐采用水热法合成了一个新的配合物{[Cu(H2bptc2-)(phen)]H2O}n。X射线单晶衍射分析表明,该配合物属于单斜晶系、P1空间群,2个H2bptc2-配体分别桥连2个Cu(Ⅱ)离子形成了零维的超分子结构,phen为双齿螯合配位的终端配体。超分子结构通过弱的π-π作用扩展为一维链,又经羧基和水分子间氢键作用扩展为3D超分子化合物。对配合物1的超分子自组装体系进行了拓扑分析,并进行了元素、红外光谱、粉末衍射(PXRD)和热失重表征。

One novel complex, namely, { [-Cu（ H2 bptc^2-） （phen）-]H2 O}. has been hydrothermally synthesized through reactionof 2,3＇,4,5 ＇-biphenyltetracarboxylic acid （H4 bptc） with divalent copper salt in the presence of a second ligand （phen= 1,10- Phenanthroline）. X-ray single crystal structure analysis reveals that coordination complex is a zero-dimensional supramolecular structure of monoclinic system, P1 space group, two H2 bptc2- ligands bridge two Cu（ Ⅱ ） ions. Phen is bidentate terminal lig- and. These supramolecular structures are connected by weak π-π interactions to form one-dimensional chains. Furthermore, strong hydrogen bonds between carboxyl groups and water molecules links extend to a three-dimensional supramolecular com- pound. In addition, complex I is analyzed by topological method, and characterized by elemental, IR spectra, PXRD and TG analyses.