Selective Recognition of Fluoride by using a Benzobisimidazolium Derivative through Aggregation-Induced Fluorescence.

ABSTRACT: A new benzobisimidazolium derivative (1) bearing four naphthalene moieties was synthesized and demonstrated as an F^- ion-selective fluorescent chemosensor. The fluorescence of 1 in acetonitrile (CH₃CN) is significantly stronger with F^- and acetate (CH₃CO₂^-), but not with other anions (Cl^-, Br^-, I^-, HSO₄^-, and H₂PO₄^-). The fluorescence of 1 is enhanced selectively with F^- in the presence of a small amount of water. Our DFT calculations indicate that the electrostatic interactions between the positively charged benzobisimidazolium moieties and F^- play an important role in the formation of stable ag

SUBMITTER: Lee D 

PROVIDER: S-EPMC5542744 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature