A stimuli-responsive pillar[5]arene-based hybrid material with enhanced tunable multicolor luminescence and ion-sensing ability

• 作者: Xin-Yue Lou Nan Song Ying-Wei Yang
• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: Special Topic:Aggregation-Induced Emission
• 页码范围: 54-63
• 页数: 10页
• 语种: 英文
• DOI: 10.1093/nsr/nwaa281

摘要

Tunable luminescent materials are becoming more and more important owing to their broad application potential in various fields.Here we construct a pillar[5]arene-based hybrid material with stimuli-responsive luminescent properties and ion-sensing abilities from a pyridine-modified conjugated pillar[5]arene and a planar chromophore oligo(phenylenevinylene) upon coordination ofCd (Ⅱ) metal cores.This new material not only shows an optimized luminescence due to the minimized π-π stacking and efficient charge transfer properties benefitting from the existence of pillar[5]arene rings,but also exhibits tunable multicolor emission induced by different external stimuli including solvent,ions and acid,indicating great application potential as a fluorescent sensory material,especially for Fe3+.With this pillar[5]arene-based dual-ligand hybrid material,valid optimization and regulation on the fluorescence of the original chromophore have been achieved,which demonstrates a plausible strategy for the design of tunable solid-state luminescent materials and also a prototypical model for the effective regulation of fluorescent properties of planar π systems using synthetic macrocycle-based building blocks.