含氮不饱和大环铈配合物催化磷酸二酯降解的研究  

Study of phosphodiester hydrolysis catalysed by nitrogen large ring cerium complexes

作　　者：肖正华[1] 冯发美[1] 何锡阳[1] 李建章[1] 谢家庆[2] 

机构地区：[1]绿色催化四川省高校重点实验室/四川理工学院化学与制药工程学院,四川自贡643000 [2]重庆理工大学化学化工学院,重庆400054

出　　处：《化学研究与应用》2012年第2期305-308,共4页Chemical Research and Application

基　　金：绿色催化四川省高校重点实验室项目(LYJ01)资助;国家自然科学基金项目(21173274)资助

摘　　要：本文利用含氮不饱和大环铈配合物催化BNPP水解。通过改变温度、pH等方法测定含氮大环铈配合物催化对硝基苯酚磷酸二酯的反应速率。整个实验过程保持含氮大环铈配合物浓度高于底物浓度10倍以上,以使反应为一级反应。结果表明:其水解反应的最佳温度在45℃左右,最佳pH在8.0左右。The complex made up of the nitrogen large ring and cerium（Ⅲ） ion was used for catalytic hydrolysis of the bis （p-nitro- phenyl） ester phosphate（BNPP） in the paper. The rate of the catalytic reaction was studied following the change of the pH and tem- peratures in the reaction solution. This reaction was considered to be apparent-first-order reaction because the nitrogen large ring ce- rium complexes concentration was ten times greater than that of the BNPP in all reactio system. The results of the study indicated that the most comfortable temperatures was 45℃,pH was 8.0.

关 键 词：大环铈配合物 催化 对硝基苯酚磷酸二酯(BNPP) 水解 

分 类 号：O643.321[理学—物理化学]