Electrochemical studies on neutral triple-bridged di-ruthenium compounds. |
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| Authors: | T Arthur R Contreras GA Heath G Hefter AJ Lindsay DJA Riach TA Stephenson |
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| Institution: | Department of Chemistry, University of Edinburgh, Edinburgh EH9 3JJ, Scotland. |
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| Abstract: | Voltammetric studies reveal that, like Ru2Cl4(PPh3)4(CO)], triply-bridged complexes Ru2Cl4L5] (L = PClPh2, PMePh2, PEt2Ph) are reversibly oxidized to Ru2Cl4L5]+. The mixed valence complexes Ru2Cl5L3Y] (L = PPh3, P(tol)3; Y = CO, CS) undergo a corresponding reduction to Ru2Cl5L3Y]?; whereas Ru2Cl5L4] (L = PEt2Ph, As(tol)3) and Ru2Cl6(AsPh3)3] are both reduced oxidised in reversible one-electron steps. For the bridging (RuCl3Ru)z+ moiety, the redox series z = 1, 2, 3, 4 is established. |
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