Rational design of red AIEgens with a new core structure from non-emissive heteroaromatics

The development of new aggregation-induced emission (AIE) systems is a hot research topic, from which functional materials with diversified structures and properties are derived. Here, based on rare, non-emissive and highly electron-withdrawing heteroaromatics of 1,4,5,8-tetraazaanthracene (TAA), ex...

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Bibliographic Details
Published in:Chemical science (Cambridge) 2018-10, Vol.9 (40), p.7829-7834
Main Authors: Chen, Ming, Hu, Xianglong, Liu, Junkai, Li, Baixue, Leung, Nelson L C, Viglianti, Lucia, Cheung, Tsz Shing, Sung, Herman H Y, Kwok, Ryan T K, Williams, Ian D, Qin, Anjun, Lam, Jacky W Y, Tang, Ben Zhong
Format: Article
Language:English
Subjects:
Amines
Crystallography
Emissivity
Nanoparticles
Rotors
Structural analysis
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Summary:The development of new aggregation-induced emission (AIE) systems is a hot research topic, from which functional materials with diversified structures and properties are derived. Here, based on rare, non-emissive and highly electron-withdrawing heteroaromatics of 1,4,5,8-tetraazaanthracene (TAA), experimental and theoretical studies reveal that attaching phenyl rotors to TAA is crucial to creating a new N-type AIE core structure. Furthermore, by covalent attachment of electron-donating aromatic amines to the peripheries of the AIE core, red AIEgens could be obtained readily, which exhibit excellent photostability for long-term lysosome tracking. This work not only provides a new strategy to design heterocycle-containing AIEgens from non-emissive heteroaromatics but also stimulates more their applications as bio-imaging materials.
ISSN:2041-6520
2041-6539
DOI:10.1039/C8SC02810A