A highly specific tetrazole-based chemosensor for fluoride ion: A new sensing functional group based on intramolecular proton transfer

A simple but highly selective colorimetric and fluorescent chemosensor for fluoride ion has been prepared based on coumarin chromophore and 1H-tetrazole. Tetrazole functional group provided a novel sensing functional group containing the ESIPT structure for designing fluoride chemosensor.

Figure optionsDownload as PowerPoint slideHighlights
► A novel ESIPT fluorescent sensor (CMTZ) for F− was designed.
► The structure of CMTZ is based on coumarin chromophore and 1H-tetrazole.
► CMTZ shows the colorimetric and fluorescent detection for F− with high selectivity.
► A sensing functional group is provided to design a dual-responsive chemosensor of F−.