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Gabriele Canzi and Clifford P. Kubiak Mixed-Valence Nanoclusters: Fast Electron Transfer in Mixed-Valence Systems with a Gold Nanoparticle as the Bridge Small 7

Version of Record online: 9 JUN 2011 | DOI: 10.1002/smll.201100483

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Trinuclear ruthenium clusters attached to Au nanoparticles can be partially reduced to form mixed-valence nanoclusters. The nanoparticles are synthesized using a modified Brust method. IR-SEC shows dynamic coalescence of the stretching vibrations of the carbonyls, ν(CO), indicating the electron transfer between Ru clusters attached via a π-conjugated bridge to NPs occurs on the picosecond timescale. Simulation of IR spectra gives ket on the order of 1011 s−1.

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