Macrocycles, pseudorotaxanes and catenanes containing a pyrrolo-tetrathiafulvalene unit: Absorption spectra, luminescence properties and redox behavior

R. Ballardini, V. Balzani, A. Di Fabio, M. T. Gandolfi*, J. Becher, J. Lau, M. B. Nielsen, J. F. Stoddart

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

The photophysical properties of (i) three macrocycles (1-3) of different size, each one incorporating a bis(2,5-dimethylpyrrolo[3,4-d])tetrathiafulvalene (TTFP) and a 1,4-dimethoxybenzene (DMB) electron-donating unit, (ii) the six pseudorotaxanes obtained by threading 1-3 with the electron acceptors dimethyldiazapyrenium (DMDAP2+) and dibenzyldiazapyrenium (DBDAP2+) and (iii) the three catenanes obtained by interlocking 1-3 with the electron-accepting cyclophane cyclobis(paraquat-p-phenylene) (CBPQT4+) have been investigated. The monooxidized and dioxidized species obtained by oxidation with Fe(III) of the TTFP unit contained in the above compounds have also been studied. The redox-driven dethreading/rethreading process has been investigated in the case of the pseudorotaxane based on the macrocycle 2 and the DMDAP2+ dication. In the catenanes, oxidation of the TTFP unit causes strong spectral changes, but does not promote disruption of the interlocked structures.

Original languageEnglish (US)
Pages (from-to)293-298
Number of pages6
JournalNew Journal of Chemistry
Volume25
Issue number2
DOIs
StatePublished - Mar 10 2001

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

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