Wu Xueyan, Guo Jixi, Cao Yali, Zhao Jianzhang, Jia Wei, Chen Yi, Jia Dianzeng
Key Laboratory of Energy Materials Chemistry , Ministry of Education , Key Laboratory of Advanced Functional Materials , Autonomous Region , Institute of Applied Chemistry , Xinjiang University , Urumqi , 830046 , P. R. China . Email:
State Key Laboratory of Fine Chemicals , Dalian University of Technology , 2 Linggong Road , Dalian 116024 , P. R. China.
Chem Sci. 2018 May 18;9(23):5270-5277. doi: 10.1039/c8sc00833g. eCollection 2018 Jun 21.
A novel single organic molecule-carborane conjugate, , was synthesized in a high yield a modified nickel-catalyzed cross-coupling reaction incorporating an anthracene unit and an -carborane moiety. exhibits multiple functions of tricolored mechanochromism and mechanically triggered thermochromism. The fluorescence could be switched from blue to bright yellow then to pink by grinding. The robust and reversible thermochromic process was triggered by the mechanical force. The locally excited (LE) state emission, intermolecular excimer formation and twisted intermolecular charge transfer (TICT) are the primary origins of this tricolor switching property. High temperature sensitivity of the heavily ground powders contribute to the mechanical force induced TICT emission enhancement and color switching.
通过一种改良的镍催化交叉偶联反应，结合蒽单元和碳硼烷部分，以高产率合成了一种新型单有机分子 - 碳硼烷共轭物 。 具有三色机械变色和机械触发热变色的多种功能。通过研磨，荧光可从蓝色切换为亮黄色，然后再变为粉红色。这种稳健且可逆的热变色过程由机械力触发。局域激发（LE）态发射、分子间激基缔合物形成和扭曲分子间电荷转移（TICT）是这种三色切换特性的主要起源。重度研磨的 粉末的高温敏感性有助于机械力诱导的TICT发射增强和颜色切换。
