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Issue 2, 2009
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Redox-driven switching in pseudorotaxanes

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Abstract

Two donor–acceptor thread-like compounds incorporating viologen (V2+) units and 1,5-dihydroxynaphthalene (DNP) stations have been prepared. Their ability to form self-assembled charge-transfer (CT) complexes with cucurbit[8]uril (CB[8]) is evidenced by UV-Vis and NMR spectroscopies, as well as by mass spectrometry. Binding studies show the formation of 1 : 1 and 2 : 1 complexes between CB[8] and a thread-like compound containing two viologen units, while only a 1 : 1 inclusion complex was observed between CB[8] and a thread-like compound containing only a single viologen unit. The switching behavior of the threads within their pseudorotaxane frameworks was investigated by using cyclic voltammetry (CV) and UV-Vis spectroscopy.

Graphical abstract: Redox-driven switching in pseudorotaxanes

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Publication details

The article was received on 03 Nov 2008, accepted on 15 Dec 2008 and first published on 15 Jan 2009


Article type: Paper
DOI: 10.1039/B819466A
New J. Chem., 2009,33, 254-263

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    Redox-driven switching in pseudorotaxanes

    A. Trabolsi, M. Hmadeh, N. M. Khashab, D. C. Friedman, M. E. Belowich, N. Humbert, M. Elhabiri, H. A. Khatib, A. Albrecht-Gary and J. F. Stoddart, New J. Chem., 2009, 33, 254
    DOI: 10.1039/B819466A

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