蒽单元和1,3-二硫杂环戊烯-2-硫酮单元构建的三组分荧光传感器与汞(II)的反应及其在离子液中的荧光性质  

A Novel Triad Fluorescent Chemodosimeter with 4,5-Bis(2'-cyanoethylthio)-1,3-dithiole-2-thione and Anthracene Units for Hg(II) Recognition and Its Fluorescence Properties in Ionic Liquid

作　　者：迟兴宝[1] 刘洋[1] 

机构地区：[1]淮北师范大学化学与材料科学学院,淮北235000

出　　处：《有机化学》2013年第7期1545-1550,共6页Chinese Journal of Organic Chemistry

基　　金：安徽高校省级自然科学研究重点项目计划(No.KJ2010A307);淮北市科技人才培育计划基金(No.20120310)资助项目~~

摘　　要：4,5-二(2'-氰乙基硫基)-1,3-二硫杂环戊烯-2-硫酮在甲醇钠的作用下消除一个氰乙基,形成1,3-二硫杂环戊烯-2-硫酮单钠盐,再与9,10-二(氯甲基)蒽反应生成由两个1,3-二硫杂环戊烯-2-硫酮(DMIT)单元和一个蒽单元构建的新型三组分荧光传感器.这种新的荧光分子传感器与乙酸汞(II)的反应,却生成具有强荧光的二乙酸蒽-9,10-二甲酯(4)和双(1,3-二硫杂环戊烯-2-酮-4,5-二硫)Hg(II)配合物(5),利用化合物4的强荧光性质可以选择性识别Hg(II).还在离子液中研究此荧光分子传感器特殊的荧光行为,实验结果表明随着离子液量的增加,溶液的荧光显著增强.4,5-Bis（2＇-cyanoethylthio）-l,3-dithiole-2-thione （DMIT） was treated with sodium methoxide to deprotect one 2-cyanoethyl group, affording mono-thiolate of DMIT. The generated mono-thiolate was trapped by 9,10-dicholormethylene anthracene to yield a novel triad fluorescent chemodosimeter with DMIT and anthracene units. The triad reacted with Hg（OAc）2 to yield a strongly fluorescent compound 4 and a complex 5 of DMIT. So the triad could selectively recognize Hg2＋ by the unique properties of compound 4. Fluorescence properties of the triad were further explored in ionic liquid. The ex- periment results showed that fluorescence intensity of the triad became more strengthen with amounts of ionic liquid.

关 键 词：1 3-二硫杂环戊烯-2-硫酮 荧光传感器 合成 离子液 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] O657.3[自动化与计算机技术—控制科学与工程]