Single-Molecule-Resolved Structural Changes Induced by Temperature and Light in Surface-Bound Organometallic Molecules Designed for Energy Storage
ACS Nano2011Vol. 5(5), pp. 3701–3706
Citations Over TimeTop 15% of 2011 papers
Jongweon Cho, Luis Berbil-Bautista, Ivan Pechenezhskiy, Niv Levy, Steven K. Meier, Varadharajan Srinivasan, Yosuke Kanai, Jeffrey C. Grossman, K. Peter C. Vollhardt, Michael F. Crommie
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.
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