Web Release Date: May 29,
Electrochemical Control of CO/NO Ligand Exchange in a Triruthenium Cluster Monolayer Assembled on a Gold Electrode Surface
and
Catalysis Research Center, Hokkaido University, Sapporo 001-0021, Japan, Japan Science and Technology Agency (JST), and Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
Received January 29, 2004
Abstract:
A highly selective ligand exchange reaction is realized in the self-assembled monolayer (SAM) of a triruthenium cluster on a gold electrode surface under precise electrochemical potential control. CO as well as NO molecules, which are known to play key roles in many chemical, biological, and environmental systems, can be efficiently introduced into the SAM by electrochemically tuning the electronic state of the Ru site. These unique surface reactions are more convenient and efficient than conventional ligand exchange reactions in solution and could be used for the elucidation of the electron-transfer mechanism in a biological system as well as in the development of molecular sensors and devices.
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