含吡啶二脲配体汞(Ⅱ)、镉(Ⅱ)配合物的合成及其晶体结构

摘要

以2,2'-二氨基二苯醚和4-吡啶异氰酸酯反应合成了含吡啶二脲配体(L),并分别与HgCl2和Cd(ClO4)2进行了配位反应,得到2个配位聚合物｛[Hg(L)Cl2]·2DMF}n(1)和{[Cd(L)2(H2O)2](ClO4)2·4DMF· 2H2O· 2CH3OH}n(2),采用1H NMR、MS、FTIR和元素分析等对化合物L进行了表征.通过X射线单晶衍射技术测定了配体及2个配合物的单晶结构,结构解析表明,2个配合物均为一维链状结构.进一步考察了2个配合物的热稳定性及其对甲醇蒸气的吸附性能.%A bis(pyridylurea) ligand(L) was synthesized from the reaction of bis(2-aminophenyl) ether with 4-isocyanatopyridine.HgCl2 and Cd(ClO4)2 reacted with L to give two coordination polymers {[Hg(L)Cl2]· 2DMF}n (1) and {[Cd(L)2(H2O)2](ClO4)2·4DMF ·2H2O ·2CH3OH}n (2),respectively.The ligand was characterized by 1H NMR,MS,FTIR,and elemental analysis.The structures of the ligand and two complexes were analyzed via single crystal X-ray diffraction,and the structural analysis indicated that both complexes show a one-dimensional chain structure.Their thermal stabilities and vapor adsorptions for MeOH were further investigated.