Solvent-controlled assembly of pillar[5]arene-based supramolecular networks via π–π interactions for white light modulation,Organic Chemistry Frontiers

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Solvent-controlled assembly of pillar[5]arene-based supramolecular networks via π–π interactions for white light modulation
Organic Chemistry Frontiers ( IF 4.6 ) Pub Date : 2019/12/13 , DOI: 10.1039/c9qo01383k
Qi Li _{1,

2,

3,

4} , Yuezhou Liu _{1,

2,

3,

4} , Peiren Liu _{1,

2,

3,

4} , Liqing Shangguan _{1,

2,

3,

4} , Huangtianzhi Zhu _{1,

2,

3,

4} , Bingbing Shi _{1,

2,

3,

4}

Affiliation

White light emitting materials have gained considerable attention. Exploring new strategies to achieve controllable white light emission is important for the construction and application of fluorescent materials. Here we report a supramolecular network based on pyrene-containing pillar[5]arene via π–π interactions, whose assembly and emission are controlled by solvent polarity. By introducing a red emissive europium complex guest, we successfully fabricate a supramolecular crosslinked network with solvent polarity-dependent emissions. White light emission with a CIE coordinate at (0.33, 0.31) is also achieved by adjusting the methanol fraction. This work provides a method to construct tunable fluorescent supramolecular systems and generate homogeneous white light emission by controlling noncovalent interactions.

中文翻译：

基于π[π]相互作用的基于柱[5]芳烃的超分子网络的溶剂控制组装，用于白光调制

白光发射材料已经引起了相当大的关注。探索实现可控白光发射的新策略对于荧光材料的构建和应用很重要。在这里，我们基于含芘柱[5]芳烃报告一个超分子网络通过π-π相互作用，其组装和发射受溶剂极性控制。通过引入红色的发射complex络合物，我们成功地制造了具有溶剂极性依赖性发射的超分子交联网络。通过调节甲醇比例也可以实现CIE坐标为（0.33，0.31）的白光发射。这项工作提供了一种构建可调荧光超分子系统并通过控制非共价相互作用产生均匀白光发射的方法。

更新日期：2020-02-13

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