Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing, 100872, P. R. China.
Chem Asian J. 2022 Sep 14;17(18):e202200592. doi: 10.1002/asia.202200592. Epub 2022 Aug 10.
In recent years, organic mechanofluorochromism (MFC) materials have attracted wide attention in many fields. However, the exploration of MFC materials with high-contrast, high-sensitivity and high-responsiveness remains a challenge. Herein, a series of MFC materials with 2-biarylyl cinchoninic acid skeleton were successfully established, which are based on interconversion of classical/frustrated Brønsted pairs. These compounds have the mechanochromic shift of up to 115 nm, as well as the property of stunning sensitivity and multiple responses to external mechanical force stimuli. The luminescence properties can be easily tuned by changing the substituents.
近年来，有机机械变色（MFC）材料在许多领域引起了广泛关注。然而，探索具有高对比度、高灵敏度和高响应性的 MFC 材料仍然是一个挑战。在此，成功建立了一系列基于经典/受挫布朗斯特对转化的具有 2-联芳基金鸡纳酸骨架的 MFC 材料。这些化合物具有高达 115nm 的机械变色位移，以及对外机械力刺激的惊人灵敏度和多重响应特性。通过改变取代基可以很容易地调节发光性能。
