Wang Xiao-Yan, Lv Liqiang, Sun Li, Hou Yue, Hou Zhenghao, Chen Zhao
College of Chemical Engineering, Shijiazhuang University, Shijiazhuang, China.
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, China.
Front Chem. 2022 Mar 4;10:865198. doi: 10.3389/fchem.2022.865198. eCollection 2022.
Smart luminescent materials, which can respond to the changing of external environment (light, electricity, force, temperature, etc.), have always been one of the research hotspots. Mechanochromism refers to the materials whose emission color or intensity can be altered under the stimulation of external mechanical force. This kind of smart materials have been widely used in data storage, information encryption and sensors due to its simple operation, obvious and rapid response. The introduction of metal atoms in metal-organic compounds brings about fascinating metalophilic interactions and results in more interesting and surprising mechanochromic behaviors. In this mini-review, recent advances in mechanochromism of metal-organic compounds, including mono-, di-, multinuclear metal-organic complexes and metallic clusters are summarized. Varies mechanisms are discussed and some design strategies for metal-organic compounds with mechanochromism are also presented.
智能发光材料能够响应外部环境（光、电、力、温度等）的变化，一直是研究热点之一。机械变色是指材料在外部机械力刺激下发射颜色或强度可发生改变。这类智能材料因其操作简单、响应明显且迅速，已广泛应用于数据存储、信息加密和传感器领域。金属有机化合物中引入金属原子会产生迷人的亲金属相互作用，并导致更有趣和令人惊讶的机械变色行为。在这篇综述中，总结了金属有机化合物机械变色的最新进展，包括单核、双核、多核金属有机配合物和金属簇。讨论了各种机理，并提出了一些具有机械变色性能的金属有机化合物的设计策略。
