Semiconducting single crystals comprising segregated arrays of complexes of C60

Jonathan C. Barnes, Edward J. Dale, Aleksandrs Prokofjevs, Ashwin Narayanan, Ian C. Gibbs-Hall, Michal Juríček, Charlotte L. Stern, Amy A. Sarjeant, Youssry Y. Botros, Samuel I. Stupp, J. Fraser Stoddart*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Although pristine C60 prefers to adopt a face-centered cubic packing arrangement in the solid state, it has been demonstrated that noncovalent-bonding interactions with a variety of molecular receptors lead to the complexation of C60 molecules, albeit usually with little or no control over their long-range order. Herein, an extended viologen-based cyclophane-ExBox24+-has been employed as a molecular receptor which, not only binds C60 one-on-one, but also results in the columnar self-assembly of the 1:1 inclusion complexes under ambient conditions. These one-dimensional arrays of fullerenes stack along the long axis of needle-like single crystals as a consequence of multiple noncovalent-bonding interactions between each of the inclusion complexes. The electrical conductivity of these crystals is on the order of 10-7 S cm-1, even without any evacuation of oxygen, and matches the conductivity of high-quality, unfunctionalized C60-based materials that typically require stringent high-temperature vaporization techniques, along with the careful removal of oxygen and moisture, prior to measuring their conductance.

Original languageEnglish (US)
Pages (from-to)2392-2399
Number of pages8
JournalJournal of the American Chemical Society
Volume137
Issue number6
DOIs
StatePublished - Feb 18 2015

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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