Abstract
The effect of acceptor unit order on the photophysical properties of two distinct donor-acceptor-acceptor conjugated fluorescent acrylonitriles, TPA-AN-PhBT and TPA-BT-ANPh, was systematically investigated. Compared with faintly emissive TPA-AN-PhBT in solution, TPA-BT-ANPh showed strong red-shifted fluorescence. TPA-AN-PhBT and TPA-BT-ANPh exhibited enhanced green and deep red emissions with remarkable fluorescence quantum yields up to 44% in the solid state. In addition, TPA-BT-ANPh possessed stronger two-photon absorption than TPA-AN-PhBT. Furthermore, these biocompatible dyes served as excellent fluorescent markers for specific lipid droplet imaging.
Original language | English |
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Pages (from-to) | 8305-8309 |
Number of pages | 5 |
Journal | Organic Letters |
Volume | 24 |
Issue number | 45 |
DOIs | |
Publication status | Published - 18 Nov 2022 |
Externally published | Yes |