Hybrid <i>cis</i>/<i>trans</i> Tetra-arylethenes with Switchable Aggregation-Induced Emission (AIE) and Reversible Photochromism in the Solution, PMMA Film, Solid Powder, and Single Crystal
sensitivity. Results show that all the hybrid cis/trans-isomers performed switchable fluorescence and reversible photochromism in solution, PMMA film, solid powder, and single crystal. Moreover, these hybrid tetraarylethenes could be utilized as photoswitchable media to tune the behavior of aggregation-induced emission (AIE) and aggregation-caused quenching (ACQ). These versatile properties are favorable
如何有效设计和合成多功能分子特别具有挑战性。在此演示文稿中,我们致力于通过直接的准备工作来构造一种具有复合功能的简单结构。从常见的市售材料开始,可以在温和的条件下通过一锅法方便地获得标题的顺式/反式-四芳烃。通过1 H NMR和单晶数据分析确认了不同的构型。该反tetraarylethenes可以转换成顺不仅通过光辐照还可以通过微波辐照形成多聚体形式,这为我们提供了异构转换的新选择,尤其是在光敏性方面。结果表明,所有杂种顺/反-异构体在溶液,PMMA膜,固体粉末和单晶中执行可切换的荧光和可逆的光致变色。此外,这些杂四芳基芳烃可用作光开关介质,以调节聚集诱导发射(AIE)和聚集引起的猝灭(ACQ)的行为。这些通用特性有利于荧光光电开关,无损读出和逻辑门的潜在应用。我们希望我们的设计策略能够为基于某种简单结构和便捷合成方法的一种多功能分子的构建提供新的协议。
Preparation and properties of multifunctional tetraarylethenes and their oxides
作者:Chun Wang、Liying Yan、Wei Ding、Qianfu Luo
DOI:10.1016/j.dyepig.2020.108264
日期:2020.6
and their oxides have been designed and synthesized conveniently. When alternately irradiated by ultraviolet and visible light, their solution, solid powder and PMMA films can all switch reversibly between colorless and rare yellow. The typical aggregation-induced emission effect in H2O-THF mixed solution was investigated in detail. It was found that these tetraarylethenes and their oxides exhibited