氮杂穴状大环钴(Ⅱ)配合物的合成、晶体结构及其催化性能  

Crystal Structure and Catalytic Properties of N-heterocryptating Macrocyclic Mononuclear Co(Ⅱ) Coordination Compound

作　　者：伍鲲 李佳[1] 刘捷[1] WU Kun LI Jia LIU Jie(College of Chemistry and Chemical Engineering, Henan University of Teehnology, Zhengzhou 450001, China)

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《合成化学》2017年第1期47-50,55,共5页Chinese Journal of Synthetic Chemistry

摘　　要：以一个氮杂穴状大环配体为自由配体,与硝酸钴经配合反应合成了一个新的穴状单核钴配合物[CoL(NO_3)]·(NO_3)·8H_2O(1),其晶体结构经X-射线单晶衍射表征。采用紫外-可见分光光度法对1催化p-硝基苯酚醋酸酯(NA)的水解动力学性质进行了研究。结果表明:催化水解速率对底物(NA)及配合物浓度均呈一级反应,催化水解速率受酸碱平衡影响。A novel mononuclear complex,[CoL（NO3）]·（NO3） ·8H2O（1）,was synthesized by complexation reaction of N-heterocryptating macrocyclic ligand with Co（NO3）2.The structure was characterized by X-ray crystal diffraction analysis.The hydrolysis kinetic properties of 1 towards p-nitrophenyl acetate（NA） was studied by UV-Vis.The results showed that the catalytic hydrolysis rate was first order reaction,and the reaction was influenced by acid-base equilibrium.

关 键 词：氮杂穴状大环配体 单核钴配合物 合成 晶体结构 p-硝基苯酚醋酸酯 催化水解动力学 

分 类 号：O643.12[理学—物理化学] Q556[理学—化学]