Acid/base-controlled supramolecular switch

Owen A. Matthews*, Françisco M. Raymo, J. Fraser Stoddart, Andrew J P White, David J. Williams

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


A rotaxane-like complex incorporating a hydroquinone-intercepted acyclic polyether chain terminated by tert-butylaniline rings and encircled by cyclobis(paraquat-p-phenylene) self-assembles spontaneously in acetonitrile solution from which it can be crystallized. Protonation of the nitrogen atoms of the guest is accompanied by the complete dissociation of the supramolecular complex into its free components. Addition of a base restores the original equilibrium affording back the rotaxane-like complex.

Original languageEnglish (US)
Pages (from-to)1131-1134
Number of pages4
JournalNew Journal of Chemistry
Issue number11
StatePublished - Nov 1998

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry


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