A Porous Tricyclooxacalixarene Cage Based on Tetraphenylethylene1. Issue 32 (18th June 2015)

• Record Type: Journal Article
• Authors: Zhang, Chun; Wang, Zhen; Tan, Liangxiao; Zhai, Tian‐Long; Wang, Sheng; Tan, Bien; Zheng, Yan‐Song; Yang, Xiang‐Liang; Xu, Hui‐Bi
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 32(2015)
• Page Start: 9244
• Page End: 9248
• Publication Date: 2015-06-18
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201502912
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A quadrangular prismatic tricyclooxacalixarene cage <bold>1</bold> based on tetraphenylethylene (TPE) was efficiently synthesized by a one‐pot S_NAr condensation reaction. As a result of the porous internal structure in the solid state, cage <bold>1</bold> exhibited a good CO₂ uptake capacity of 12.5 wt % and a high selectivity for CO₂ over N₂ adsorption of 80 (273 K, 1 bar) with a BET surface area of 432 m² g⁻¹. Formation of cage <bold>1</bold> led to the fluorescence of TPE being switched on in solution. The system was employed as a single‐molecule platform to study the mechanism of aggregation‐induced emission (AIE) by examining the restriction of intramolecular rotation (RIR).</p> </abstract>