A Reversible and Reusable Selective Chemosensor for Fluoride Detection Using a Phenolic OH-Containing BODIPY Dye by Both Colorimetric 'Naked-eye' and Fluorometric Modes

作者：Wang, Lingyun^*; Fang, Guipo; Cao, Derong

来源：Journal of Fluorescence, 2014, 24(6): 1757-1766.

DOI：10.1007/s10895-014-1464-2

• Colorimetric
• Chemosensor
• BODIPY
• Fluoride
• Fluorescence

A novel BODIPY-based probe 1 was designed and synthesized as a selective fluorescent and colorimetric chemosensor for fluoride. The spectral responses of 1 to fluoride in acetonitrile were studied: an approximately 118 nm red shift in absorption and 'turn-off' emission response was observed. The striking pink to indigo change in ambient light was thought to be due to the deprotonation of the phenol moiety by way of O-H center dot center dot center dot F hydrogen bonding interactions. Interestingly, when the nonfluorescent 1-F- solution treated with trifluoroacetic acid (TFA) resulted in color change from indigo to pink and a significant enhancement of fluorescence intensity (10-fold). Furthermore, the reversibility and reusability of probe 1 for the detection of F- ion was tested for four cycles indicating the probe 1 could be used in reversible manner.

• 出版日期2014-11
• 单位华南理工大学