Principles of Aggregation-Induced Emission: Design of Deactivation Pathways for Advanced AIEgens and Applications

Angewandte Chemie
Satoshi SuzukiGen-Ichi Konishi

Abstract

Twenty years ago, the concept of aggregation-induced emission (AIE) was proposed, and this unique luminescent property has attracted scientific interest ever since. However, AIE denominates only the phenomenon, while the details of its underlying guiding principles remain to be elucidated. This mini review discusses the basic principles of AIE based on our previous mechanistic study on the photophysical behavior of 9,10-bis( N , N -dialkylamino)anthracene ( BDAA ) and the corresponding mechanistic analysis by quantum chemical calculations. BDAA comprises of an anthracene core and small electron donors, which allows discussing the quantum-chemical aspects of AIE. The key factor for AIE is the control over the non-radiative decay (deactivation) pathway, which can be visualized by considering the conical intersection (CI) on a potential energy surface. Controlling the conical intersection (CI) on the potential energy surface enables the separate formation of fluorescent (CI:high) and non-fluorescent (CI:low) molecules. The novelty and originality of AIE in the field of photochemistry lies in the creation of functionality by design and in the active control over deactivation pathways. Moreover, we provide a new design strategy for ...Continue Reading

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Citations

Oct 20, 2020·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Stéphane HoangEléna Ishow
Dec 15, 2020·Organic & Biomolecular Chemistry·Mykhaylo A PotopnykJuozas Vidas Grazulevicius
Jan 8, 2021·Chembiochem : a European Journal of Chemical Biology·Alexander ZimmermannJens Voskuhl
Mar 9, 2021·Frontiers in Immunology·Zongwei LiuWeijiang Guan
Mar 17, 2021·Topics in Current Chemistry·Ana Clara B Rodrigues, J Sérgio Seixas de Melo
Jul 25, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Rosita Diana, Barbara Panunzi
Jul 22, 2021·Chemical Communications : Chem Comm·Guanming LiaoXiaodong Yin
Nov 18, 2020·Journal of the American Chemical Society·Andrés ZavaletaJudith Gallucci
Jul 31, 2021·Chemistry, an Asian Journal·Deepta ChattapadhyayDebasish Haldar

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Methods Mentioned

BETA
optical microscopy

Software Mentioned

AIEgens

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