炔插入四苯基乙烯衍生物：通过分子内和分子间相互作用增强聚集诱导发射

IF 4.7 1区化学 Q1 CHEMISTRY, ORGANIC

Organic Chemistry Frontiers Pub Date : 2025-09-15 DOI:10.1039/d5qo01158b

Yi-Yun Zhu, Wenhao Li, Yan-Qi Fan, Hao-Chen Lu, Donghui Wei, Xuenian Chen

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引用次数: 0

摘要

固态发光经常受到聚集引起的猝灭（ACQ）的阻碍，这促使人们寻找高效的聚集诱导发射（AIE）材料。四苯基乙烯（Tetraphenylethylene， TPE）是AIE研究中的明星分子，已被广泛应用于通过结构修饰来研究分子内受限运动（RIM）机理。突破传统的外围修饰，我们通过在三苯基乙烯（TriPE）核心和平面发色团（TriPE-yn- ar）之间插入炔基连接剂来设计TPE核心，其中炔基键的长度和空间取向决定了分子构象、分子间相互作用、晶体填充以及沿自转轴的扭转振荡。TriPE-yn-9-Phen表现出j聚集增强的发射特性，固体量子产率为69.9%，晶体量子产率为88.4%，AIE因子为221。这种中心改性策略为设计先进的AIE材料开辟了新的途径。

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Alkyne-Inserted Tetraphenylethylene Derivatives: Enhanced Aggregation-Induced Emission via Intramolecular and Intermolecular Interactions

Solid-state luminescence is often hindered by aggregation-caused quenching (ACQ), prompting the search for efficient aggregation-induced emission (AIE) materials. Tetraphenylethylene (TPE), a star molecule in AIE research, has been widely used to study the restricted intramolecular motion (RIM) mechanism through structural modifications. Breaking from traditional peripheral modification, we engineer the TPE core by inserting an alkynyl linker between the triphenylethylene (TriPE) core and planar chromophores (TriPE-yn-Ar), where the alkynyl bond length and spatial orientation dictate molecular conformations, intermolecular interactions, and crystal packing, as well as the torsional oscillation along the rotation axis. The TriPE-yn-9-Phen demonstrates J-aggregation-enhanced emission with quantum yields of 69.9% in solid and 88.4% in crystal, with an AIE factor of 221. This central modification strategy opens new avenues for designing advanced AIE materials.

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来源期刊

Organic Chemistry Frontiers CHEMISTRY, ORGANIC-

CiteScore

7.90

自引率

11.10%

发文量

686

审稿时长

1 months

期刊介绍： Organic Chemistry Frontiers is an esteemed journal that publishes high-quality research across the field of organic chemistry. It places a significant emphasis on studies that contribute substantially to the field by introducing new or significantly improved protocols and methodologies. The journal covers a wide array of topics which include, but are not limited to, organic synthesis, the development of synthetic methodologies, catalysis, natural products, functional organic materials, supramolecular and macromolecular chemistry, as well as physical and computational organic chemistry.