金属钇离子-二乙撑三胺体系催化磷酸二酯水解的研究  

Hydrolysis of the phosphate diester catalyzed by the system of diethylenetriamine and yttrium ion

作　　者：蔡述兰[1] 郑兴文[1] 

机构地区：[1]四川理工学院化学与制药工程学院,四川自贡643000

出　　处：《化学试剂》2012年第5期401-404,共4页Chemical Reagents

基　　金：绿色催化四川省高校重点实验室资助项目(2011LY1104);四川理工学院科研启动项目(2009SK4)

摘　　要：研究了金属离子Y3+-二乙撑三胺体系催化双(对硝基苯酚)磷酸酯(BNPP)水解的作用机理。考察了不同催化反应条件对催化效率和体系稳定性的影响。结果表明,在pH 7.8～9.3,温度25～50℃的条件下,催化体系高效、稳定具有重现性,其催化活性物种是由金属Y3+离子与二乙撑三胺形成的配合物。The mechanism of Bis （p-nitrophenyl） phosphate ester （BNPP） catalyzed by the system of diethylenetriamine and yttrium ion was investigated. The catalytic efficiency and stability of the system was studied in different reaction condi- tions. The results indicated that the catalytic system exhibited high activity, stability and reproducibility under pH 7.8 - 9.3 and temperature 25 - 50 ℃. The results also showed that the active species is the complex of Y^3＋ ion and diethylenetri- amine.

关 键 词：金属钇配合物 磷酸二酯 水解 催化机理 

分 类 号：O643.3[理学—物理化学]