AIEgens represent a special class of molecules, which are emissive in aggregated state, but show almost no fluorescence in dissolved form. Herein we report on the aggregation-induced emission properties of scandium complex with 2-naphtoyltrifluoroacetone ([Sc(NTA)3]). Fluorescence quantum yield of the complex increases ∼68 times, from 0.005 to 0.34, in aqueous solution by comparison with solution in dimethylformamide. This scandium complex is also emissive in powder form or as a film on a glass substrate, indicating that restriction of intramolecular motions facilitates complex fluorescence. The sensitized fluorescence of rhodamine 6 G and rhodamine B was observed in mixed aggregates of complexes and dyes showing the possibility to use [Sc(NTA)3] as efficient energy donor.

Original languageEnglish
Article number112826
Number of pages7
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume402
Early online date5 Aug 2020
DOIs
StatePublished - 1 Nov 2020

    Scopus subject areas

  • Physics and Astronomy(all)
  • Chemical Engineering(all)
  • Chemistry(all)

    Research areas

  • Aggregation-induced emission, Coordination compounds, Fluorescence, NANOPARTICLES, FLUORESCENCE, DEPOSITION, CHEMISTRY, INTRAMOLECULAR ENERGY-TRANSFER, LUMINESCENT PROPERTIES

ID: 61844017