Issue 47, 2009
From the journal:

Physical Chemistry Chemical Physics

Redox-induced partner radical formation and its dynamic balance with radical dimer in cucurbit[8]uril†

Tongyan Zhang,a   Shiguo Sun,*a   Fengyu Liu,b   Jiangli Fan,a   Yi Pang,ac   Licheng Sun*d  and  Xiaojun Peng*a  

* Corresponding authors

a State Key Laboratory of Fine Chemicals, Dalian University of Technology, 158 Zhongshan Road, Xigang District, Dalian 116012, China
E-mail: shiguo@dlut.edu.cn
Fax: +86 (0)411 39893906

b Department of Chemistry and State Key Laboratroy of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Ganjingzi District, Dalian 116023, China

c Department of Chemistry, The University of Akron, Akron, Ohio 44325, USA

d Department of Chemistry, Organic Chemistry, Royal Institute of Technology (KTH), Teknikringen 30, 100 44 Stockholm, Sweden

Abstract

N-(4-Hydroxy-phenoxyethyl)-N′-ethyl-4,4′-bipyridium (1) can form a stable 1 : 1 inclusion complex with CB[8] in aqueous solution, in which the hydroxyphenol (HP) moiety is back-folded and inserted together with the viologen moiety into the cavity of CB[8]. When the ethyl viologen dication (EV2+) in 1 is reduced, chemically or electrochemically, an intramolecular partner radical (EV+˙-HP)/CB[8] can be detected, meanwhile, a dynamic balance between the partner radical and the intermolecular radical dimer (EV+˙-HP)2/CB[8] can be observed.

Graphical abstract: Redox-induced partner radical formation and its dynamic balance with radical dimer in cucurbit[8]uril

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Article information

DOI
https://doi.org/10.1039/B916591F
Article type
Paper
Submitted
17 Aug 2009
Accepted
17 Sep 2009
First published
16 Oct 2009

Phys. Chem. Chem. Phys., 2009,11, 11134-11139

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Redox-induced partner radical formation and its dynamic balance with radical dimer in cucurbit[8]uril

T. Zhang, S. Sun, F. Liu, J. Fan, Y. Pang, L. Sun and X. Peng, Phys. Chem. Chem. Phys., 2009, 11, 11134 DOI: 10.1039/B916591F

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