Supramolecular interactions of anthraquinone networks on Au(1 1 1): Hydrogen bonds and van der Waals interactions

Ji Yeon Kim, Won Jun Jang, Howon Kim, Jong Keon Yoon, Jihun Park, Se Jong Kahng, Jhinhwan Lee, Seungwu Han

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Intermolecular interactions of supramolecular structures were studied in anthraquinone molecules on Au(1 1 1) using scanning tunneling microscopy. Molecular chains of linear and zigzag structures were observed and explained with simple models of hydrogen bonds. In two-dimensional islands, square and chevron structures were observed, and their molecular models were reproduced by density functional theory calculations. Square structures were made of four hydrogen bonds per molecule, whereas chevron structures were explained with four hydrogen bonds per molecule and additional van der Waals interactions. Our study shows that van der Waals interactions play cooperative roles in determining the hydrogen bonded networks of the system.

Original languageEnglish
Pages (from-to)432-435
Number of pages4
JournalApplied Surface Science
Volume268
DOIs
Publication statusPublished - 2013

Keywords

  • Hydrogen bond
  • Scanning tunneling microscope
  • Supramolecular network
  • Van der Waals interaction

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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