基于双咪唑基配体的两个镉(Ⅱ)配位聚合物合成、晶体结构和表征(英文)

Synthesis,Crystal Structures and Characterization of Two Cadmium Coordination Polymers Based on a Bis(imidazole) Ligand

水热条件下,合成了两个新的配位聚合物[Cd(PhCOO)2(bmix)]n(1)和{[Cd(chdc)(bmix)].C2H5OH}n(2)(bmix=1,4-双(2-甲基咪唑基-1-甲基)苯,H2chdc=1,4-环己二酸)。单晶结构分析表明,配合物1为一维锯齿状链结构平行于[001]平面;配合物2为层状结构,镉原子通过双配体桥连形成四连接的二维(4,4)网络。两个配合物中镉原子均具有6配位的畸变八面体几何构型,另外,测定了两个配合物的热稳定性。

The two Cd（II） coordination polymers, [Cd（PhCOO）2（bmix）]n （1） and {[Cd（chdc）（bmix）] ·C2H5OH}n （2） （bmix=l,4-bis （2-methylimidazole-l-ylmethyl）benzene, H2chdc=l,4-cyclohexanedicarboxylic acid） were hydrother- mally synthesized and characterized by elemental analysis, IR spectroscopy, TG and X-ray single crystal diffrac- tion. 1 possesses a one-dimensional zigzag chain structure parallel to [001]; 2 displays a two-dimensional undulated （4,4） network constructed with bmix and chdc dianion bridge ligands. Each cadmium（M） ion in 1 and 2 has distorted octahedral coordination geometry. In addition, the thermal properties of two coordination polymers have been presented. CCDC： 842711, 1; 842712, 2.