水溶液中异喹啉与羟基的作用机理  

The Reaction Mechanism Studies on Isoquinoline with Hydroxyl Radical in Aqueous Solution

作　　者：朱大章[1] 汪世龙[2] 孙晓宇[2] 倪亚明[1] 姚思德[3] 

机构地区：[1]同济大学化学系,上海200092 [2]同济大学生命科学与技术学院,上海200092 [3]中国科学院上海应用物理研究所,上海201800

出　　处：《复旦学报（自然科学版）》2006年第6期774-778,共5页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金资助项目(50572074)

摘　　要：利用脉冲辐解技术对异喹啉水溶液与羟基的作用机理进行了详细研究,对其瞬态吸收峰进行了归属,初步考察了这些瞬态粒子的生成和衰减行为.研究表明,.OH与异喹啉在中性和碱性条件下反应生成羟基加合物,生成速率常数分别为3.4×109和6.6×109mol-1.dm3.s-1.在酸性条件下异喹啉先被质子化,再与羟基发生加成反应,反应速率常数为3.9×109mol-1.dm3.s-1,这为异喹啉的氧化降解提供了理论基础.The reaction mechanism between isoquinoline and()~·OH radical in aqueous dilute solutions under different conditions was studied by pulse radiolysis.The main characteristic peaks in these transient absorption spectra were attributed and the growth-decay trends of several transient species were investigated.Under neutral or alkaline conditions,the reaction of()~·OH radical and isoquinoline produces OH-adducts with respective rate constant of 3.4×10~9 and 6.6×10~9 mol^(-1)·dm^3·s^(-1) while under acidic condi...

关 键 词：异喹啉 脉冲辐解 瞬态吸收光谱 羟基 

分 类 号：X703[环境科学与工程—环境工程]