具有聚集诱导发射(AIE)特性的机械荧光:应用各向同性和各向异性力的视角

IF 7.1 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Topics in Current Chemistry Pub Date : 2021-06-09 DOI:10.1007/s41061-021-00341-x
Vishal Kachwal, Inamur Rahaman Laskar
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引用次数: 6

摘要

有机机械荧光(MFC)?材料(在各向异性和各向同性压力下改变其发射)吸引了?近年来,由于其在传感压力、存储器件、安全油墨、三维(3D)打印等方面的应用前景广阔,引起了人们的广泛关注。具有聚集诱导发射(AIE)特性的刺激响应有机材料将是一类丰富MFC化合物化学性质的有趣材料。金刚石砧细胞(DAC)是一种小型工具,用于在小面积上对材料产生高而均匀的压力。本文讨论了各向异性(机械磨削)和各向同性(静水)压力下AIE化合物的化学结构与发射特性变化的关系。这类材料的发光特性取决于分子在晶格中的重排、构象变化、激发态跃迁和弱分子间相互作用。因此,研究这些化合物在不同压力下的发光性质的变化,将有助于更深入地了解各种发光化合物在应力作用下的激发态性质。综述了这类材料的发展和压力对其发光性能影响的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Mechanofluorochromism with Aggregation-Induced Emission (AIE) Characteristics: A Perspective Applying Isotropic and Anisotropic Force

Organic mechanofluorochromic (MFC)?materials (that change their emission under anisotropic and isotropic pressure) have attracted a?great attention in recent years due to their promising applications in sensing pressure, storage devices, security inks, three-dimensional (3D) printing, etc. Stimuli-responsive organic materials with aggregation-induced emission (AIE) characteristics would be an interesting class of materials to enrich the chemistry of MFC compounds. A diamond anvil cell (DAC) is a small tool that is employed to generate high and uniform pressure on materials over a small area. This article discusses the relationship between the chemical structure of AIE compounds and the change in emission properties under anisotropic (mechanical grinding) and isotropic (hydrostatic) pressure. The luminescent properties of such materials depend on the molecular rearrangement in the lattice, conformational changes, excited state transitions and weak intermolecular interactions. Hence, studying the change in luminescent property of these compounds under varying pressure will provide a deeper understanding of the excited-state properties of various emissive compounds with stress. The development of such materials and studies into the effect of pressure on their luminescence properties are summarized.

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来源期刊
Topics in Current Chemistry
Topics in Current Chemistry Chemistry-General Chemistry
CiteScore
13.70
自引率
1.20%
发文量
48
期刊介绍: Topics in Current Chemistry is a journal that presents critical reviews of present and future trends in modern chemical research. It covers all areas of chemical science, including interactions with related disciplines like biology, medicine, physics, and materials science. The articles in this journal are organized into thematic collections, offering a comprehensive perspective on emerging research to non-specialist readers in academia or industry. Each review article focuses on one aspect of the topic and provides a critical survey, placing it in the context of the collection. Selected examples highlight significant developments from the past 5 to 10 years. Instead of providing an exhaustive summary or extensive data, the articles concentrate on methodological thinking. This approach allows non-specialist readers to understand the information fully and presents the potential prospects for future developments.
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