Fluorescent 1-hydroxy-10-alkylacridin-9(10H)-one BF2-chelates: Large Stokes shift and long emission decay times

Andreas Russegger, Sergey M. Borisov*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

New 1-hydroxy-10-alkylacridin-9(10H)-one BF2-chelates absorb in the blue-green part of the electromagnetic spectrum and emit fluorescence with moderate quantum yields of 8–45% in toluene. The dyes show large Stokes shifts about 4300 cm−1, decay times between 5 ns and 15 ns in toluene and high photostabilities. Introduction of a fluorine atom into the acridone cycle results in an increase of the fluorescence quantum yield and decay time whereas immobilization in a rigid polymer matrix (polystyrene) further extends the lifetime up to 18 ns. Large Stokes shifts and long emission decay time make this dye class an interesting platform for time-resolved imaging and sensing applications.

Original languageEnglish
Article number108816
JournalDyes and pigments
Volume184
DOIs
Publication statusPublished - Jan 2021

Keywords

  • 1-Hydroxyacridones
  • BF-fluorophores
  • Fluorescence
  • Synthesis

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology

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