Recyclable mechanoluminescent luminogen: different polymorphs, different self-assembly effects of the thiophene moiety and recovered molecular packing via simple thermal-treatment
Recyclable mechanoluminescent luminogen: different polymorphs, different self-assembly effects of the thiophene moiety and recovered molecular packing via simple thermal-treatment
复制标题
可回收的机械发光发光体：不同的多晶型、噻吩部分的不同自组装效应以及通过简单热处理恢复的分子堆积
DOI：
10.1039/c8qm00411k
复制
发表时间：
2019-01-01
影响因子：
7
通讯作者：
Li, Zhen
中科院分区：
文献类型：
--
作者：
Wang, Can;Yu, Yun;Li, Zhen
我们报道了一种纯有机可回收机械发光发光体（tPE-5-MeTh），其以 AIEgen 和噻吩基团的组合作为自组装单元。由于不同的自组装效应，从不同的溶剂中培养出两种结晶多晶型物，它们具有完全不同的堆积模式和具有相反ML性质的各种分子间/内相互作用。令人兴奋的是，tPE-5-MeTh 的分子堆积状态可以通过简单的热处理进行调整，从而提供其 ML 活性的可恢复性和可控性。这些结果为合理的分子设计、潜在应用的便利和内在机制的深入理解提供了新的途径。
We report a purely organic recyclable mechanoluminescent luminogen (tPE-5-MeTh) with the combination of an AIEgen and a thiophene group as the self-assembly unit. As a result of the different self-assembly effects, two crystalline polymorphs were cultured from different solvents, which possess totally different packing modes and various inter/intramolecular interactions with opposite ML properties. Excitingly, the molecular packing status of tPE-5-MeTh could be adjusted through simple thermal-treatment, offering recoverability and controllability of its ML activity. These results provide a new avenue for rational molecular design, convenience of potential applications and deep understanding of the inherent mechanism.