Abstract

The pH and water content in organic solvents are some of the most important parameters that play a key role in chemical laboratories, clinical analysis, food processing, biomedical and environmental monitoring, and life sciences. Herein we are reporting on the design, synthesis and sensor activity of a novel 4-amido-1,8-naphthalimide ratiometric fluorescent pH probe based on excimer-monomer switching mechanism. The fluorescence chemosensing behavior of the synthesized compound was studied in solvents of different polarity and the results obtained clearly demonstrates the great opportunity of the novel probe selectively to determine pH in aqueous solutions and water content in organic environment.

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