含吡啶二脲配体汞(Ⅱ)、镉(Ⅱ)配合物的合成及其晶体结构

Syntheses and Crystal Structures of Hg(Ⅱ) and Cd(Ⅱ) Complexes Derived from a Bis(pyridylurea) Ligand

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HgCl_2和Cd(ClO_4)2进行了配位反应,得到2个配位聚合物{[Hg(L)Cl_2]·2DMF}_n(1)和{[Cd(L)_2(H_2O)_2](ClO_4)_2·4DMF·2H_2O·2CH_3OH}_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）2·4 DMF·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 Me OH were further investigated.