Turning Non‐Emissive Schiff Bases Into Aggregate Emitters
Abstract: Schiff bases are a crucial component in various functional materials but often exhibit non‐emissive behavior which significantly limits their potential applications as luminescent materials. However, traditional approaches to convert them into aggregate emitters often require intricate molecular design, tedious synthesis, and significant time and resource consumption. Herein, we present a cocrystallization‐induced emission strategy that can transform non‐emissive (hetero) aryl‐substituted Schiff bases into green‐yellow to yellow aggregate emitters via even simple grinding of a mixture of Schiff bases and 1,2,4,5‐tetracyanobenzene (TCB) mixtures. The combined experimental and theoretical analysis revealed that the cocrystallization inhibits the C=N isomerization and promotes face‐to‐face π–π interaction, which restricts access to both the dark state and canonical intersection to ultimately induce emission. Furthermore, the induced emission enables the observation of solid‐state molecular diffusion through fluorescence signals, advancing white light emission diodes, and notably, solution‐processed organic light‐emitting diodes based on cocrystal for the first time. This study not only highlights the potential of developing new C=N structural motifs for AIEgens but also could boost advancements in related structure motifs like C=C and N=N.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Turning Non‐Emissive Schiff Bases Into Aggregate Emitters ; day:08 ; month:04 ; year:2024 ; extent:11
Angewandte Chemie ; (08.04.2024) (gesamt 11)
- Urheber
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Chen, Xinmeng
Zhang, Siwei
Jiang, Yefei
He, Guiying
Zhang, Minjie
Wang, Jin
Deng, Zihao
Wang, Haoran
Lam, Jacky W. Y.
Hu, Lianrui
Tang, Ben Zhong
- DOI
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10.1002/ange.202402175
- URN
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urn:nbn:de:101:1-2024040914190813483391
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:54 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Chen, Xinmeng
- Zhang, Siwei
- Jiang, Yefei
- He, Guiying
- Zhang, Minjie
- Wang, Jin
- Deng, Zihao
- Wang, Haoran
- Lam, Jacky W. Y.
- Hu, Lianrui
- Tang, Ben Zhong
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