Slater, Jonathan W., D'alessandro, Deanna M., Keene, F. Richard, and Steel, Peter J. (2006) Metal-metal interactions in dinuclear ruthenium complexes incorporating stepped-parallel bridging ligands: synthesis, stereochemistry and intervalence charge transfer. New Journal of Chemistry, 30 (2). pp. 228-237.

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Abstract

The synthesis and separation of the diastereoisomeric forms of the complexes [{Ru(bpy)2}2(µ-BL)]4+ based on the series of stepped-parallel bridging ligands 2,5-bis(2-pyridyl)pyrazine (2,5-dpp), dipyrido(2,3-a;2,3-h)phenazine (dpop) and azobis(2-pyridine) (apy) are reported. Electrochemical and intervalence charge transfer (IVCT) studies on the complexes reveal a high degree of metal–metal interaction, consistent with a negligible solvent dependence of the IVCT parameters in each case. The results support a Class II–III classification for the systems.

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