Highly Selective “Turn-On” Fluorescent and Colorimetric Sensing of Fluoride Ion Using 2-(2-Hydroxyphenyl)-2,3-dihydroquinolin-4(1 <i>H</i>)-one based on Excited-State Proton Transfer
作者:Kuppusamy Kanagaraj、Kasi Pitchumani
DOI:10.1002/asia.201300816
日期:2014.1
A simple, highlyselective and sensitive colorimetric system for the detection of fluorideion in an aqueous medium has been developed using 2‐(2‐hydroxyphenyl)‐2,3‐dihydroquinolin‐4(1H)‐one. This system allows selective “turn‐on” fluorescence detection of fluorideion, which is found to be dependent upon guest basicity. An excited‐state protontransfer is proposed to be the signaling mechanism, which