Aroyl-<i>S</i>,<i>N</i>-ketene acetal-triarylamine bichromophores - intramolecular energy transfer and dual emission upon induced aggregation and encapsulation.

ABSTRACT: Aroyl-S,N-ketene acetal-based bichromophores are synthesized by a catalytic aryl amination and their photophysics are studied in the solid state, in ethanol-water mixtures inducing aggregation, and after encapsulation in polystyrene nanoparticles. The dye substitution pattern controls aggregation-induced emission and intramolecular energy transfer efficiency, resulting in single-band or dual fluorescence and a strong increase in fluorescence quantum yield upon particle encapsulation.

SUBMITTER: El Abbassi A 

PROVIDER: S-EPMC12922939 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature