Mechanistic investigation into a bifunctional fluorescent probe based on excited state intramolecular double proton transfer process

Key Points

• The bifunctional fluorescent probe demonstrates unique excited state behavior, enhancing its application potential.
• Notably, it allows for efficient intramolecular proton transfer, which impacts fluorescence characteristics.
• Mechanistic investigation involved various spectroscopic techniques to understand the proton transfer process under different conditions.
• This study highlights implications for future sensing applications, especially in biological environments.