Fluorescent supramolecular mechanophores based on charge-transfer interactions
Fluorescent supramolecular mechanophores based on charge-transfer interactions
复制标题
DOI：
10.1039/d0cc03126g
复制
发表时间：
2020-07-21
影响因子：
4.9
通讯作者：
Takeda, Naoya
中科院分区：
文献类型：
--
作者：
Imato, Keiichi;Yamanaka, Ryota;Takeda, Naoya
基于荧光芘与萘二亚胺之间的电荷转移相互作用的超分子机械荧光团具有串联结构，并被整合到聚-己内酯的中链中。即使在低浓度的溶液和聚合物基质中，荧光也会被分子内CT相互作用淬灭，而在施加机械力的情况下，荧光也会被激发。
Supramolecular mechanofluorophores based on charge-transfer (CT) interactions between fluorescent pyrene and naphthalene diimide(s) with a tandem structure are newly developed and incorporated into the mid-chain of poly(epsilon-caprolactone)s. The fluorescence (FL) is quenched by the intramolecular CT interactions even at low concentrations both in solution and in the polymer matrix, and turn-on FL is induced upon application of mechanical forces.