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Published April 28, 1983 | public
Journal Article

Laser Spectroelectrochemistry of a Ruthenium(II) Tris(bipyridyl) Derivative Adsorbed on Graphite Electrodes


The luminescence spectra of laser-excited films of [Ru(bpy)_2pbpy]Cl_2 (bpy = 2,2'-bipyridine; pbpy = 4 4'bis(2-(diphenylamino)ethyl)-2,2'-bipyridine) adsorbed on pyrolytic graphite electrode surfaces are reported. The graphite electrode surface is shown to be effective in quenching the excited state and the resulting decay of the luminescence ls analyzed. The intensity of the luminescence from the molecules in the film can be modulated by controlling the potential of the underlying electrode. It is shown that the emitting molecules are in electronic contact with the electrode.

Additional Information

© 1983 American Chemical Society. Received: February 4, 1983. This work was supported by the U.S. Army Research Office and by the National Science Foundation. We thank Daniel Buttry for the sample of [Ru(bpy)_2(pbpy)]Cl_2 and helpful discussions. A.J.M. acknowledges a Fullbright-Hays Travel Grant.

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