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http://hdl.handle.net/2183/29412 Viologen–Cucurbituril Host/Guest Chemistry – Redox Control of Dimerization Versus Inclusion
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Dalvand, Parastoo
Nchimi Nono, Katia
Shetty, Dinesh
Benyettou, Farah
Asfari, Zouhair
Olson, Mark Anthony
Trabolsi, Ali
Elhabiri, Mourad
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P. Dalvand, K. N. Nono, D. Shetty, F. Benyettou, Z. Asfari, C. Platas-Iglesias, M. A. Olson, A. Trabolsi and M. Elhabiri, Viologen–cucurbituril host/guest chemistry – redox control of dimerization versus inclusion, RSC Adv., 2021, 11, 29543–29554.
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Abstract
[Abstract] Two calix[4]arene systems, C234+ and C244+ – where 2 corresponds to the number of viologen units and 3–4 corresponds to the number of carbon atoms connecting the viologen units to the macrocyclic core – have been synthesized and led to the formation of [3]pseudorotaxanes when combined with either CB[7] or CB[8]. The [3]pseudorotaxanes spontaneously dissociate upon reduction of the bipyridinium units as the result of intramolecular dimerization of the two face-to-face viologen radical cations. CB[7] and CB[8]-based [2]pseudorotaxanes containing monomeric viologen guest model compounds, MC32+ and MC4+, do not undergo decomplexation and dimerization following electrochemical reduction of their bipyridinium units.
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Atribución-NoComercial 3.0 España
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