Aggregation of C70-Fragment Buckybowls on Surfaces: π-H and π-π Bonding in Bowl Up-Side-Down Ensembles

Quirin S. Stöckl, Ya Chu Hsieh, Anaïs Mairena, Yao Ting Wu, Karl Heinz Ernst

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The self-assembly of the C38H14-buckybowl, a fragment bowl of the C70 fullerene, has been studied with scanning tunneling microscopy on the Cu(111) surface. Isolated molecules adsorb bowl opening-up with the center C6 ring parallel to the surface. In extended 2D islands, however, 1/3 of the molecules are oriented such that the bowl opening points down. From a detailed analysis of relative orientation of the molecules, the nature of intermolecular lateral interactions is identified. In densely packed islands, π-π bonding between convex sides of the bowls dominate, while π-H bonding between rim and convex sides plays the important role in small molecular 2D clusters.

Original languageEnglish
Pages (from-to)6111-6114
Number of pages4
JournalJournal of the American Chemical Society
Volume138
Issue number19
DOIs
Publication statusPublished - 2016 May 18

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All Science Journal Classification (ASJC) codes

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

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