A chemosensor for the Al3+ion, 1-[(3-hydroxypyridin-2-ylamino) methylene]naphthalen-2(1H)-one (H2L), based on inhibited excited-state intramolecular proton transfer was synthesized. The experimental and theoretical calculations at B3LYP+PCM/6-31G(d) revealed that Al3+and H2L form a 1:1 complex, [AlL(OH)(H2O)]2, in dimethyl sulfoxide that exhibits two remarkably enhanced fluorescent emissions at 523 and 553 nm. It is confirmed that H2L could be used to detect Al3+ions in cells by bioimaging.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry