Elucidating the sensing mechanism of a fluorescent probe for formaldehyde detection: A computational study under acidic and neutral conditions.
The probe HBT-BA1 based on excited-state intramolecular proton transfer (ESIPT) can achieve rapid optical responses and show promising potential for formaldehyde (FA) detection. However, the ESIPT-mediated luminescence regulation mechanism remains completely unexplored, particularly regarding how environmental conditio...