Single-molecule-resolved structural changes induced by temperature and light in surface-bound organometallic molecules designed for energy storage

Jongweon Cho, Luis Berbil-Bautista, Ivan V. Pechenezhskiy, Niv Levy, Steven K. Meier, Varadharajan Srinivasan, Yosuke Kanai, Jeffrey C. Grossman, K. Peter C. Vollhardt, Michael F. Crommie

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We have used scanning tunneling microscopy, Auger electron spectroscopy, and density functional theory calculations to investigate thermal and photoinduced structural transitions in (fulvalene)tetracarbonyldiruthenium molecules (designed for light energy storage) on a Au(111) surface. We find that both the parent complex and the photoisomer exhibit striking thermally induced structural phase changes on Au(111), which we attribute to the loss of carbonyl ligands from the organometallic molecules. Density functional theory calculations support this conclusion. We observe that UV exposure leads to pronounced structural change only in the parent complex, indicative of a photoisomerization reaction.

Original languageEnglish (US)
Pages (from-to)3701-3706
Number of pages6
JournalACS nano
Volume5
Issue number5
DOIs
StatePublished - May 24 2011
Externally publishedYes

Keywords

  • Co loss
  • Fulvalene
  • Isomerization energy storage
  • Ruthenium
  • Scanning tunneling microscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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