Large photoactive supramolecular ensembles prepared from C 60-pyridine substrates and multi-Zn(II)-porphyrin receptors

Ali Trabolsi, Maxence Urbani, Juan Luis Delgado, Fettah Ajamaa, Mourad Elhabiri, Nathalie Solladié, Jean François Nierengarten, Anne Marie Albrecht-Gary

Research output: Contribution to journalArticlepeer-review

Abstract

Fullerene derivatives bearing a pyridine sub-unit have been prepared. Their ability to form self-assembled supramolecular structures with mono- and polytopic Zn(II)-porphyrin receptors has been first evidenced by UV-vis studies. These supramolecular complexes are multi-component photoactive devices, in which the emission of the porphyrinic receptor is dramatically quenched by the fullerene units. This new property, resulting from the association of the different molecular sub-units, also allowed us to investigate in detail the self-assembly process using fluorescence titrations. The binding studies revealed positive cooperative effects for the assembly of the C 60-pyridine derivatives with polytopic receptors as a result of intramolecular C60-C60 interactions between the different guests assembled onto the multi-Zn(ii)-porphyrin hosts.

Original languageEnglish (US)
Pages (from-to)159-165
Number of pages7
JournalNew Journal of Chemistry
Volume32
Issue number1
DOIs
StatePublished - 2008

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

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