Abstract
Two calix[4]arene systems,C234+andC244+- 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 eitherCB[7]orCB[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]andCB[8]-based [2]pseudorotaxanes containing monomeric viologen guest model compounds,MC32+andMC4+, do not undergo decomplexation and dimerization following electrochemical reduction of their bipyridinium units.
Original language | English (US) |
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Pages (from-to) | 29543-29554 |
Number of pages | 12 |
Journal | RSC Advances |
Volume | 11 |
Issue number | 47 |
DOIs | |
State | Published - Aug 9 2021 |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering