Free radical oxidation reaction for selectively solvatochromic sensors with dynamic sensing ability

A novel BODIPY based fluorescent sensor for selective and visual sensing of DMF is developed and the sensing process of BODPY-DT exhibits dynamic fluorescent emission color changes from red to yellow-green. [Display omitted] A novel BODIPY (boradiazaindacene) dye denoted as BODIPY-DT containing terpyridine unit has been designed and characterized. The dye is found to be selective and visual solvatochromic sensor toward DMF among test organic solvents. The sensing process displays time-controllable, dynamic signal outputs in the emission colors including red, purple, yellow and even white emission colors. It is presented that selective free radical oxidation reaction happens during the recognition process.