It has been demonstrated recently that diruthenium paddlewheel complexes react with aryl lithium to form both mono and bisaryl diruthenium (Ru2II,III and Ru2III,III) complexes. This poster focuses on both the synthesis and the characterization of electronic and structural properties of an arylene-bridged, Ru2(ap)4 (ap = 2-anilinopyridinate) capped compound and its CN- based derivative. Voltammetric and spectroelectrochemical studies of the oxidized form of [(NC)Ru2(ap)4]2(μ-1,4-C6H4) reveals a significant electronic coupling between the two Ru2 units, supported by DFT calculations. Analysis of intervalence charge transfer (IVCT) bands suggests that this complex belongs to the Robin-Day class II-III mixed valence ions, demonstrating phenylene as an effective mediator of electron hole transfer.

Investigation of electronic coupling between two diruthenium cores mediated by arylene

ACS Spring 2022

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