960化工网
Fluorinated leaning pillar[6]arene: synthesis, structure and selective iodide anion binding by anion–π interactions†
Weichun Li,Peng Qin,Xing-Xing Zhao,Wen-Juan Qu,Qi Lin,Hong Yao,Tai-Bao Wei,You-Ming Zhang,Yuezhou Liu,Bingbing Shi
Organic & Biomolecular Chemistry Pub Date : 11/03/2022 00:00:00 , DOI:10.1039/D2OB01579J
Abstract

Anion recognition has continuously attracted significant attention due to its important role in environmental and biological sciences. Here, we have designed and synthesized an electron-deficient fluorinated leaning pillar[6]arene 1 that contains two tetrafluoro-benzene units. The electron-deficient fluorinated leaning pillar[6]arene 1 is capable of selectively recognizing iodide anions to form a host–guest complex with 1 : 1 stoichiometry driven by anion–π interactions. Our work ascribes this selective recognition to the preorganization of macrocycles, suitable cavity size, and the effect of anion–π interactions. The innovative application of this macrocycle offers us a new avenue for the design of selective receptors for anions and electron-deficient macrocyclic arenes.

Graphical abstract: Fluorinated leaning pillar[6]arene: synthesis, structure and selective iodide anion binding by anion–π interactions
平台客服
平台客服
平台在线客服