Formation of high-aspect-ratio helical nanorods via chiral self-assembly of fullerodendrimers

Andrew J. Hilmer, Darin O. Bellisario, Steven Shimizu, Thomas P. McNicholas, Qing Hua Wang, Scott A. Speakman, Michael S. Strano

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Two novel, asymmetric methanofullerenes are presented, which self-assemble in cyclohexane upon thermal cycling to 80 C. We show that, through the introduction of a dipeptide sequence to one terminus of the dendritic methanofullerene, it is possible to transform the assembly behavior of these molecules from poorly formed aggregates to high-aspect-ratio nanorods. These nanorods have diameters of 3.76 ± 0.52 nm and appear to be composed of interwoven helices of dendritic fullerenes. As evidenced by circular dichroism, the helicity is characterized by a preferential handedness of assembly, which is imparted by the dipeptide moiety.

Original languageEnglish (US)
Pages (from-to)929-934
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume5
Issue number5
DOIs
StatePublished - Mar 6 2014
Externally publishedYes

Keywords

  • Bingel addition
  • benzyl dendron
  • fullerene
  • methanofullerene
  • nanorod
  • self-assembly

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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