Aggregation Control of Hemicyanine Fluorescent Dye by Using of Cucurbit[7]uril and Pillar[6]arene  

作　　者：Meijiao Cao Fang Hu Xie Han Yufeng Zhang Di Wu Sheng Hua Liu Jun Yin 

机构地区：[1]Key Laboratory of Pesticide and Chemical Biology,Ministry of Education,College of Chemistry,Central China Normal University,Wuhan,Hubei 430079,China

出　　处：《Chinese Journal of Chemistry》2015年第3期351-355,共5页中国化学（英文版）

基　　金：support from Na-tional Natural Science Foundation of China(21272088,21472059,21402057);the Scientific Research Founda-tion for the Returned Overseas Chinese Scholars,Min-istry of Education and the self-determined research funds of CCNU from the colleges’basic research and operation of MOE(CCNU14A05009,CCNU14F01003).

摘　　要：The aggregation of cyanine-based fluorescent dyes easily results in the fluorescence quenching,which limits the applications in biological science and materials science.So developing an efficient method to adjust the aggregation of cyanine dyes is very significant.In this work,we employ two different macrocyclic hosts pillar[6]arene(DEP[6])and cucurbit[7]uril(CB[7])to investigate their effects towards fluorescence spectra of dye 1.The result indicates that both of them can disrupt the aggregation of dye 1,resulting in the enhancement of its fluorescence intensity.Interestingly,investigation on the corresponding titration experiments of 1H NMR and density functional theory cal-culations shows that CB[7]and DEP[6]play different roles in the process of disaggregation.

关 键 词：HEMICYANINE fluorescence dye arene uril aggregation control 

分 类 号：O62[理学—有机化学]