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 language | English |
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Article number | 108816 |
Journal | Dyes and Pigments |
Volume | 184 |
DOIs | |
Publication status | Published - Jan 2021 |
Keywords
- 1-Hydroxyacridones
- BF-fluorophores
- Fluorescence
- Synthesis
ASJC Scopus subject areas
- Chemical Engineering(all)
- Process Chemistry and Technology