Multifunctional materials have been a hot research topic because of their intriguing properties and infinite possibility in various fields. Among them, triboluminescence (TL) material, although known for more than four centuries, has been the most mysterious one. In this study, a thiochromanone derivative (TDI) with planar molecular configuration, which was considered as unlikely to exhibit triboluminescence (TL) because of the aggregation-caused quenching phenomenon, was found to exhibit efficient TL when scraped with a spoon in the dark or under room light. Furthermore, the molecule was sensitive to the O–H hydrogen-bond donor. The emission could be switched from 420 to 470 nm and enhanced in intensity with the presence of oxhydryl. This work may facilitate the understanding of the TL mechanism and guide the design of efficient organic TL material. Additionally, the hydrogen-bond responsiveness of TDI may provide a new path to design the stimuli-responsive system or to be applied in an information cryptosystem.

中文翻译：

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硫色满酮衍生物的摩擦发光和选择性氢键响应

多功能材料因其耐人寻味的特性和在各个领域的无限可能性而成为一个热门的研究课题。其中，摩擦发光（TL）材料虽然已为人所知四个多世纪，但却是最神秘的一种。在本研究中，硫色满酮衍生物 ( TDI) 具有平面分子构型，由于聚集引起的猝灭现象，被认为不太可能表现出摩擦发光 (TL)，当在黑暗或室内光线下用勺子刮擦时，发现其表现出有效的 TL。此外，该分子对 O-H 氢键供体敏感。发射可以从 420 nm 切换到 470 nm，并在羟基的存在下增强强度。这项工作可能有助于理解 TL 机制并指导高效有机 TL 材料的设计。此外，TDI的氢键响应性可能为设计刺激响应系统或应用于信息密码系统提供新途径。