咪唑二羧酸基镨的配位聚合物的合成、晶体结构和热性能

Synthesis,Crystal Structure and Thermal Property of Imidazole Dicarboxylate- Based Pr(Ⅲ) Coordination Polymer

通过Pr(NO3)3·6H2O与2-(4-氯苯基)咪唑-4,5-二羧酸(p-Cl Ph H3IDC)在硫酸存在下的水热反应,获得了一个结构新颖的配位聚合物。结构测试表明:在此配合物中,Pr3+离子通过多个咪唑二羧酸配体以及SO2+4的桥连形成了二维层状结构。研究了此配聚物在空气气氛下的热稳定性。

By the thermal reaction of Pr（ NO3）3·6H2O with 2-（ 4- chlorophenyl）- 1H- imidazole-4,5- dicarboxylic acid（ p- Cl Ph H3IDC） in the presence of H2SO4,one novel coordination polymer is prepared. Its structure is confirmed by X- ray structural diffraction,elemental analysis and IR data. In the complex,the Pr（ Ⅱ） ions are connected by imidazole dicarboxylate and SO2 ＋4forming a two- dimensional sheet. The thermal property of the polymer is determined in air.