摘要
以杯[6]芳烃为平台,通过在上沿用氨基吡啶桥连的方法固定构象,并以氨基吡啶基团为识别位点和荧光基团,合成了一类能识别F-和丙二酸的新型荧光化学传感器.当氟离子与胺成氢键时,由于光诱导电子转移效应(PET),荧光强度淬灭;但往这个配合物滴加丙二酸时,荧光强度得到迅速恢复,由此,传感器体现了一个on/off的分子开关性质.
A novel fluorescent chemosensor for F^- and malonic acid derived from bridged calix[6]arene which possesses 2-aminopyridine as an ionophore and a fluorophore was synthesized. When a F^- ion was bound to H atom linked to the amide, the ligand exhibited a marked quenched excimer emission due to photoinduced electron transfer effect. By the addition of malonic acid into the coordination compound, the excimer emission band was revived, by which an interesting on/off switch process was proposed.
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
2008年第7期1213-1217,共5页
Chinese Journal of Organic Chemistry
基金
国家自然科学基金(No.20502008)
广东省自然科学基金(No.05300152)资助项目
