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Issue 87, 2015
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Viologen cyclophanes: redox controlled host–guest interactions

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Abstract

Viologens can exist in three redox states varying from dicationic to neutral. This work emphasizes the control of the host–guest properties in bis-viologen cyclophanes. Two flexible cyclophanes were prepared by a cyclisation method sensitive to the odd/even number of carbons in the flexible chains linking two viologens. C5 and C7 cyclophanes were characterised by X-ray diffraction in their tetracationic state and their diradical dicationic state. In the presence of tetrathiafulvalene or methyl viologen as guests, inclusion complexes were obtained, including a mixed valence species.

Graphical abstract: Viologen cyclophanes: redox controlled host–guest interactions

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Supplementary files

Article information


Submitted
20 Jul 2015
Accepted
30 Aug 2015
First published
01 Sep 2015

Chem. Commun., 2015,51, 15772-15775
Article type
Communication
Author version available

Viologen cyclophanes: redox controlled host–guest interactions

M. Berville, L. Karmazin, J. A. Wytko and J. Weiss, Chem. Commun., 2015, 51, 15772
DOI: 10.1039/C5CC06041A

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