Improved Functionality and Control in the Isomerization of a Calix[4]Arene-Capped Azobenzene

Publication Date

2011

Document Type

Article

Issue

10

Abstract

An improved azobenzene core capped by two calix[4]arene units isomerizes readily between trans and cis configurations via photochemical and/or thermal means. In addition, the presence of acid (particularly HCl) increases the rate of thermal cis→trans conversion. These enhancements to the functional response, control, and understanding of calixarene-capped azobenzene isomerization are important for future application in the dynamic encapsulation of small chemical species. © 2011 Elsevier Ltd. All rights reserved.

Keywords

Azobenzene, Calixarene, Photoisomerization, Stimuli-responsive material, Thermal isomerization

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