An Efficient Approach to Pyrene-based Aggregation-induced Emission Luminogens

Guo, Hongxi; Song, Xinyi; Wang, Xiaohui; Liu, Yiwei; Redshaw, Carl; Feng, Xing

Abstract

To suppress the fluorescence quenching of pyrene in the aggregation state, this article presents a facile strategy for the construction of pyrene-based aggregation-induced emission luminogens (AIEgens) via decorating the pyrene core with benzophenone units at the 1-, 2- or 2,7-positions. This set of pyrene-based compounds 1–3 displayed a weak deep blue fluorescence in solution, but an enhanced excimer emission with λem max of 426–436 nm in the aggregation state. Interestingly, unlike reported benzophenone derivatives, this series of compounds did not exhibit thermally activated delayed fluorescence/ phosphorescent properties.

Citation

Guo, H., Song, X., Wang, X., Liu, Y., Redshaw, C., & Feng, X. (2022). An Efficient Approach to Pyrene-based Aggregation-induced Emission Luminogens. ChemistrySelect, 7(29), Article e202202208. https://doi.org/10.1002/slct.202202208

• Journal Article Type: Article
• Acceptance Date: Jul 21, 2022
• Online Publication Date: Aug 3, 2022
• Publication Date: Aug 5, 2022
• Deposit Date: Sep 6, 2022
• Publicly Available Date: Aug 4, 2023
• Journal: ChemistrySelect
• Electronic ISSN: 2365-6549
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 7
• Issue: 29
• Article Number: e202202208
• DOI: https://doi.org/10.1002/slct.202202208
• Keywords: Pyrene; Aggregation-induced emission; Blue emitter; ACQ-to-AIE transformation, mechanochromism
• Public URL: https://hull-repository.worktribe.com/output/4057413