A Redox-Controllable Molecular Switch Based on Weak Recognition of BPX26C6 at a Diphenylurea Station

Jia-Cheng Chang; Chien-Chen Lai; Sheng-Hsien Chiu

doi:10.3390/molecules20021775

Molecules (Jan 2015)

A Redox-Controllable Molecular Switch Based on Weak Recognition of BPX26C6 at a Diphenylurea Station

Jia-Cheng Chang,
Chien-Chen Lai,
Sheng-Hsien Chiu

Affiliations

Jia-Cheng Chang: Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
Chien-Chen Lai: Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan
Sheng-Hsien Chiu: Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan

DOI: https://doi.org/10.3390/molecules20021775
Journal volume & issue: Vol. 20, no. 2
pp. 1775 – 1787

Abstract

Read online

The Na+ ion–assisted recognition of urea derivatives by BPX26C6 has allowed the construction of a redox-controllable [2]rotaxane-type molecular switch based on two originally very weakly interacting host/guest systems. Using NOBF4 to oxidize the triarylamine terminus into a corresponding radical cation attracted the macrocyclic component toward its adjacent carbamate station; subsequent addition of Zn powder moved the macrocyclic component back to its urea station.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

About the journal

Abstract

Keywords