多功能臂大环多胺La(Ⅲ)配合物的合成及其对PNPP催化水解研究

Synthesis of multi-functional macrocyclic polyamines La(Ⅲ)complex and its catalytic activity for hydrolysis of PNPP

本文合成了一个多功能臂大环多胺La(Ⅲ)配合物,通过光谱法研究了pH值、温度以及表面活性剂对α-吡啶甲酸对硝基苯酚酯(PNPP)催化水解反应的影响。结果表明非离子表面活性剂Brij35胶束体系的催化活性比阳离子表面活性剂CTAB胶束体系高。前者加速催化,后者则禁阻催化。

A macrocyclic polyarnines La（ Ⅲ ）-complex bearing multi-functional pendent has been synthesized in this paper. The effects of pH, reaction temperature, and nature of surfactants on the hydrolysis of PNPP have been investigated. The results indicated that the different micellar systems have the different catalytic activities, and the nonionic surfactant Brij35 has a higher effect than the cationic surfactant CTAB The former accelerated the speed of hydrolysis,the later inhibited the hydrolysis of PNPP.