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.
作者
伍鲲
李佳
刘捷
WU Kun LI Jia LIU Jie(College of Chemistry and Chemical Engineering, Henan University of Teehnology, Zhengzhou 450001, China)
出处
《合成化学》
CAS
CSCD
2017年第1期47-50,55,共5页
Chinese Journal of Synthetic Chemistry
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
N-heterocryptating macrocyclic ligand
mononuclear Co（Ⅱ） complex
synthesis
crystal structure
p-nitrophenyl acetate
catalytic hydrolysis kinetics
