Donor-Acceptor-Acceptor-Conjugated Dual-State Emissive Acrylonitriles: Investigating the Effect of Acceptor Unit Order and Biological Imaging

Xiaoming Zhu, Lu Feng, Shixian Cao, Jianguo Wang, Guangle Niu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

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 languageEnglish
Pages (from-to)8305-8309
Number of pages5
JournalOrganic Letters
Volume24
Issue number45
DOIs
Publication statusPublished - 18 Nov 2022
Externally publishedYes

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Zhu, X., Feng, L., Cao, S., Wang, J., & Niu, G. (2022). Donor-Acceptor-Acceptor-Conjugated Dual-State Emissive Acrylonitriles: Investigating the Effect of Acceptor Unit Order and Biological Imaging. Organic Letters, 24(45), 8305-8309. https://doi.org/10.1021/acs.orglett.2c03274