A molecular chameleon: Chromophoric sensing by a self-complexing molecular assembly

Reinhard Wolf, Masumi Asakawa, Peter R. Ashton, Marcos Gómez-López, Christoph Hamers, Stephan Menzer, Ian W. Parsons, Neil Spencer, J. Fraser Stoddart*, Malcolm S. Tolley, David J. Williams

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


A color change from purple to green takes place on addition of tetrathiafulvalene (TTF) to the macrobicyclic receptor 14+, which is composed of a cyclobis(para-quat-p-phenylene) tetracation that shares one of its paraphenylene rings with a 1,5-naphthoparaphenylene-[36]crown-10 macrocycle. The TTF molecule forces the macrobicycle to turn inside out and displaces the self-complexed 1,5-dioxynaphthalene ring system from the center of the tetracationic cyclophane.

Original languageEnglish (US)
Pages (from-to)975-979
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number7
StatePublished - 1998


  • Chromophores
  • Molecular devices
  • Nanostructures
  • Receptors
  • Supramolecular chemistry

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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