以方酸及咪唑基配体构筑的二维层状镉(Ⅱ)配位聚合物的合成和表征(英文)

Synthesis and Characterization of a 2D Layer Cd(Ⅱ) Coordination Polymer Based on Squaric Acid and Di(imidazole) Ligand

水热条件下,以1,4-双(咪唑基-1-甲基)苯(bix)及方酸阴离子(C4O42-)为配体,合成了新的镉的配位聚合物[Cd(C4O4)(bix)(H2O)2]n(1)。单晶结构分析表明,该配合物为二维层状结构,镉中心为六配位八面体结构,赤道平面上4个配位原子分别来自方酸和bix配体,轴向2个配位原子来自配位水分子,镉原子通过双配体桥连形成四连接的二维(4,4)网络。同时,测定了配合物的热稳定性和荧光性质。

A coordination polymer [Cd（C4O4）（bix）（H2O）2], （1） has been synthesized by using 1,4-bis（imidazole-1- ylmethyl）benzene （bix） and squarate dianions （C4O4^2-） as ligands. The single crystal structural analysis showes that 1 is a 2D sheet-like network. The cadmium centers are six coordinated with two O atoms from two C4O4^2-, two N atoms of two bix ligands and two O atoms of two coordination water molecules. The structure can be described as a 4-connected 2D （4, 4） network. In addition, the thermal and luminescent properties of the coordination polymer have been studied. CCDC： 838750.