Abstract
In this study, a novel highly emissive compound was synthesized via two steps synthetic procedure and characterized by 1H-NMR, 13C-NMR and FTIR. Then its photophysical properties, pH sensing behaviours and pH-dependent hydrolysis were systematically investigated by ultraviolet and fluorescence spectroscopy. Photophysics studies were carried out in fourteen common organic solvents and absorption/emission spectra were recorded in Britton Robinson buffers (pH=3-12) to determine pH sensing behaviours. From the photophysical results, it has been shown that the novel compound exhibits strongly solvent polarity dependent emission and has high quantum yield (up to 0.72). Furthermore, at pH=12, absorbance started to decrease while emission was increasing and blue-shifting due to basic hydrolysis after a several minutes. Therefore, time dependent hydrolysis was also investigated at mentioned pH.
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