Encapsulation of Isolated Luminophores within Supramolecular Cages,Angewandte Chemie International Edition

当前位置： X-MOL 学术 › Angew. Chem. Int. Ed. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Encapsulation of Isolated Luminophores within Supramolecular Cages
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2017-09-18 , DOI: 10.1002/anie.201707097
Marcel Handke ₁ , Takuji Adachi ₁ , Chunhua Hu ₁ , Michael D. Ward ₁

Affiliation

The sequestration of luminophores within supramolecular polyhedral compartments of a crystalline zeolite‐like hydrogen‐bonded framework illustrates a unique approach to limiting the self‐quenching ordinarily exhibited at the high concentrations achievable in this framework. A range of differently sized luminescent guests, namely coumarin 1, coumarin 4, fluorescein, [Ru(bpy)₃]Cl₂, and rhodamine B, can be encapsulated in amounts of up to one molecule per cage, equivalent to a concentration of 0.175 m, which is significantly higher than the concentration at which aggregation‐induced quenching occurs in other media. The luminescence spectra of the encapsulated guests are consistent with the presence of isolated monomers and the absence of self‐quenching. The emission color of the single crystals can be tuned readily from blue to red through the choice of guest molecules. These observations promise an approach to organic solid‐state lasing compounds if crystals of sufficient size and quality can be prepared.

中文翻译：

超分子笼中孤立发光体的封装

螯合晶体状氢键构架的超分子多面室内的发光体说明了一种独特的方法来限制通常在该构架中可实现的高浓度下表现出的自猝灭。一系列不同大小的发光客体，即香豆素1，香豆素4，荧光素，[Ru（bpy）₃ ] Cl ₂和若丹明B，每个笼子最多可以封装一个分子，相当于0.175的浓度米，该浓度明显高于其他介质中发生聚集诱导的淬灭的浓度。包封的客体的发光光谱与存在孤立的单体和不存在自动猝灭相一致。通过选择客体分子，可以容易地将单晶的发射颜色从蓝色调整为红色。如果可以制备出足够大小和质量的晶体，这些观察结果有望成为一种有机固态激光化合物的方法。

更新日期：2017-09-18

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11