Chromogenic and fluorescent ‘turn‐on’ chemodosimeter for fluoride based on a F^–‐triggered cascade reaction

Abstract

We developed a new chromogenic and fluorescent 'turn-on' chemodosimeter 1 based on a F(-)-triggered cascade reaction. This system displayed significant changes in UV/vis absorption and fluorescence emission intensities selectively for F(-) over other anions in a mixture of CH3CN/H2O(95 : 5, v/v) and in acetonitrile.

A New Fluoride Chemodosimeter Based on 3-Ether-Substituted 1, 8-Naphthalimide Derivatives

“…Especially, those uorophore have been investigated extensively such as the skeleton of BODIPY, coumarin, and 1,8-naphthalimide derivatives [18][19][20] . However, in contrast to those probes for detection of uoride, the chemodosimeter based on uoride-induced desilylation reaction showing long wavelength response is limited (TableS1) [21][22][23][24] . In view of uorescent probes with long emission wavelength have low light damage, low self-uorescence as well as the better deep tissue penetration [25][26][27][28] , it is very important to develop a new uorescent chemodosimeter with the advantage of potential longer emission wavelength triggered by uorine-induced desilylation reaction.…”