文献类型：期刊文献

英文题名：Structure-Dependent Fluorescent Behavior of Heterotetraarylene-Quinolones: The Critical Role of Chemical Bond Linkages

作者：Chen, Siyuan[1];Zeng, Yan[1];Wang, Xuewen[1];Dou, Qingyu[1];Luo, Qianfu[1]

机构：[1]East China Univ Sci & Tech, Sch Chem & Mol Engn, Dept Chem, Meilong Rd 130, Shanghai 200237, Peoples R China

年份：2025

卷号：9

期号：7

外文期刊名：CHEMPHOTOCHEM

收录：;EI(收录号：20251718300767);WOS:【SCI-EXPANDED(收录号:WOS:001473455000001)】；

语种：英文

外文关键词：acidochromisms; fluorescences; heterotetraarylenes; photochromisms; structure dependent

摘要：Altering the manner in which groups are connected could offer a straightforward approach to achieving different functionality. Herein, heterotetraarylene molecules with varying bond-linked quinoline moieties are synthesized and designed to investigate their differential performances. The heterotetraarylene with carbon-carbon double bonded quinolines exhibits multifunctional properties: 1) all-visible light-induced photochromism, 2) acidochromism, and 3) acid-base gated photoswitch. Simultaneously, it achieves dual-mode fluorescence modulation through both photoexcitation and acid/base stimuli. However, the heterotetraarylene and quinoline connected by carbon carbon single bonds exhibit divergent properties, including light-induced emission enhancement and solvent-dependent fluorescence emission. This bond-selective functional divergence enables precise customization of stimulus-responsive fluorescence through simple connectivity control, establishing a novel design paradigm for smart molecular systems. Furthermore, the heterotetraarylene-linked quinolines with carbon carbon double bonds exhibit many properties, thus allowing for the construction of a new dual-responsive encryption system.