Molecular Switch Based on Very Weak Association between BPX26C6 and Two Recognition Units

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• 作者：Tsan-Wen Lu ; Chia-Fong Chang ; Chien-Chen Lai ; Sheng-Hsien Chiu
• 刊名：Organic Letters
• 出版年：2013
• 出版时间：November 15, 2013
• 年：2013
• 卷：15
• 期：22
• 页码：5742-5745
• 全文大小：268K
• 年卷期：v.15,no.22(November 15, 2013)
• ISSN：1523-7052

文摘

A [2]rotaxane has been constructed through metal ion-templated pseudorotaxane formation from a weakly interacting host (bis-p-xylyl[26]crown-6)/guest (diphenylurea derivative) complex and post-assembly modification to form another weakly interacting tertiary ammonium ion recognition site for the host. The combination of this pair of weakly interacting components allowed bifunctional (pH, Na⁺ ions) switching of the crown ether unit, highlighting the potential applicability of weakly associated components within molecular switches.