Highly Selective Fluorescent Signaling for Al3+ in Bispyrenyl Polyether

Bulletin of the Korean chemical society

Il-Hwan Suh¹  Ja Hyung Kim¹  Duong Tuan Quang¹  Hyun Jung Kim¹  Jong Seung Kim¹  Su Ho Kim¹ 

关键词: Pyrene;    Excimer;    Fluorescence;    Aluminium ion;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A series of bispyrenyl-polyether have been synthesized and investigated as a fluorescent chemosensor for metal ions. The results showed that bispyrenyl-polyether system is selective towards Al³⁺ ion over other ions tested. In free ligand, excited at 343 nm, it displays a strong excimer emission at around 475 nm with a weak monomer emission at 375 nm. A ratiometry of monomer (375 nm) increase and excimer (475 nm) quenching was shown only when Al³⁺ ion is bound to ligand, because two facing pyrene groups form a less efficient overlap of �??�? stacking compared with that of free ligand.

【 授权许可】

Unknown