ESIPT-Inspired Dual-Mode Photoswitches with Fast Molecular Isomerization in the Solid State
- 주제(키워드) Aggregation-Induced Emission , Dual-Mode , Excited-State Intramolecular Proton Transfer , Information Encryption , Solid-State Photoswitches
- 등재 SCIE, SCOPUS
- 발행기관 John Wiley and Sons Inc
- 발행년도 2023
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000209732
- 본문언어 영어
- Published As https://doi.org/10.1002/anie.202301765
초록/요약
Photoswitchable materials have attracted considerable attention in various fields. Developing excellent solid-state dual-mode photoswitches is an important but challenging task. Herein, we propose a new strategy to construct an excited-state intramolecular proton transfer (ESIPT) inspired photoswitch (DiAH-pht) that possesses aggregation-induced emission (AIE) features and displays a fast molecular isomerization process characterized by dual-mode behavior in the solid state. Mechanistic studies indicate that introduction of a bulky group can create a folded molecular conformation that provides adequate volume to facilitate photoisomerization and the enhanced ESIPT effect can boost the isomerization process. The feasibility of our strategy was further demonstrated by the activated photoisomerization performance of the Schiff base derivatives. Furthermore, DiAH-pht shows good performance in the fields of dual-mode information encryption and high-density data storage. © 2023 Wiley-VCH GmbH.
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