A luminescent supramolecular polymer based on a stiff-stilbene bridged pillar[5]arene as a Pd2+-responsive smart material,Polymer Chemistry

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A luminescent supramolecular polymer based on a stiff-stilbene bridged pillar[5]arene as a Pd2+-responsive smart material
Polymer Chemistry ( IF 4.1 ) Pub Date : 2024-06-24 , DOI: 10.1039/d4py00426d
Jing Wu ₁ , Chuanyun Liang ₁ , Jianyi Zhao ₁ , Han Zuilhof _{1,

2} , Hongxia Zhao ₁

Affiliation

Two novel stiff stilbene bridged rim-differentiated pillar[5]arenes (bis-RD-P[5]s) were designed, synthesized and characterized. Subsequently, their binding ability and fluorescence properties with a suitable tetraphenylethylene (TPE) derivative were investigated. With the aid of supramolecular assembly-induced emission (SAIE), luminescent supramolecular nanoparticles (SN) were constructed through host–guest interactions between a bis-RD-P[5] and the TPE derivative. Interestingly, the SN showed strong aggregation-induced emission (AIE) and presented special selectivity and sensitivity for Pd²⁺; the fluorescence limit of detection of SN for Pd²⁺ is 5 × 10⁻⁷ M. The bis-RD-P[5]s offer a new building block to construct sophisticated supramolecular assemblies, and the resulting SN acted as a convenient test material for the detection of Pd²⁺.

中文翻译：

基于刚性二苯乙烯桥柱[5]芳烃的发光超分子聚合物作为 Pd2+ 响应智能材料

设计、合成并表征了两种新型刚性二苯乙烯桥联边缘分化柱[5]芳烃（bis-RD-P[5]s）。随后，研究了它们与合适的四苯乙烯（TPE）衍生物的结合能力和荧光特性。借助超分子组装诱导发射（SAIE），通过双-RD-P[5]和TPE衍生物之间的主客体相互作用构建了发光超分子纳米粒子（SN）。有趣的是，SN表现出很强的聚集诱导发射(AIE)，并对Pd ²⁺ 表现出特殊的选择性和敏感性； Pd ²⁺ SN 的荧光检测限为 5 × 10 ⁻⁷ M。bis-RD-P[5] 为构建复杂的超分子组件提供了新的构建模块，所得SN可作为Pd ²⁺ 检测的便捷测试材料。

更新日期：2024-06-27

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