Abstract
A triphenylamine with three benzothiophene rings was designed and successfully synthesized in 87% yield. The compound showed absorption at 386 nm and blue emission at around 442 nm, with a fluorescence quantum yield of 0.57. The compound showed high thermostability. The radical cation obtained by one-electron oxidation was stable in solution and showed a significant absorption in the NIR-II region (λmax = 1213 nm). DFT calculations confirmed the experimental data.
Original language | English |
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Article number | 109929 |
Journal | Dyes and Pigments |
Volume | 197 |
DOIs | |
Publication status | Published - Jan 2022 |
Keywords
- Benzothiophene
- Near-infrared absorption
- NIR-II dye
- Stable radical cation
- Triphenylamine
ASJC Scopus subject areas
- Chemical Engineering(all)
- Process Chemistry and Technology