Triazine-Modified Color-Responsive Triarylboron/Acridine Fluorescent Probe with Multi-Channel Charge Transfer for Highly Sensitive Fluoride Ion Detection.

ABSTRACT: A novel fluoride ion fluorescent probe is designed by introducing the strong electron-withdrawing triazine groups into the triarylboron/acridine conjugation system. The A-D-A' molecular configuration endows this molecule with multiple charge-transfer channels; upon reaction with F^-, the triazine groups act as primary acceptors within the molecule, facilitating charge transfer between the acridine units and the triazine groups. During fluoride ion detection, changes in the triarylboron moiety lead to a significant bathochromic-shift in fluorescence emission from green to yellow. Theoretical calculations attribute this phenomenon to a reduction in the molecular S₁ state energy level upon fluorination, resulting in a pronounced visible color change and chromogenic

SUBMITTER: Tang L 

PROVIDER: S-EPMC11858165 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature