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Khurram Saleem Joya and Huub J. M. de Groot Electrochemical in situ surface enhanced Raman spectroscopic characterization of a trinuclear ruthenium complex, Ru-red Journal of Raman Spectroscopy 44

Version of Record online: 10 JUN 2013 | DOI: 10.1002/jrs.4329

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We present here the use of electrochemical in situ surface enhanced Raman spectroscopy (SERS) to study the fate of a molecular ruthenium complex, [(NH3)5Ru–O–Ru(NH3)4–O–Ru(NH3)5]6+, Ru-red, during electro-driven water oxidation. Ru-red dispersed in acid electrolyte and immobilized on a gold electrode has been subjected to anodic controlled potential experiments and in situ SERS was carried out at various potentials in succession. The electrochemical SERS data obtained for Ru-red are also compared with in situ SERS results of an electrodeposited ruthenium oxide film.

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