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Synthesis and Characterization of a Novel Dodecanuclear Porphyrin Ruthenium Cluster

Synthese und Charakterisierung eines neuen dodekanuklearen Porphyrin-Ruthenium-Clusters

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Summary.

 A new symmetric dodecanuclear complex constituted by a 5,10,15,20-tetra pyridyl porphyrin centre coordinated to four triangular μ-oxo-ruthenium acetate clusters, [Ru3O (Ac)6(py)2]+ (py=pyridine), is reported. Its electrochemical and spectroelectrochemical behaviour involves five accessible oxidation states of the cluster unities, in addition to the porphyrin oxidation and reduction waves, in the range of −1.5 to +2.4 V. The cluster porphyrin species associates very strongly with tetrasulfonate phthalocyaninatecopper (II), forming electrostatically assembled stacked compounds both in dimethylsulfoxide solution and in the solid state.

Zusammenfassung.

 Ein neuer dodekanuklearer Komplex, der durch Koordination eines 5,10,15,20-Tetrapyridylporphyrins an drei dreieckige μ-Oxo-rutheniumacetatcluster ([Ru3O(Ac)6(py)2]+, py=Pyridin) entsteht, wird vorgestellt. Sein elektrochemisches und spektroelektrochemisches Verhalten zeigt, daà im Bereich von −1.5 bis +2.4 V zusätzlich zu den Oxidations- und Reduktionswellen des Porphyrins fünf Oxidationszustände der Clustereinheiten zugänglich sind. Der Cluster assoziiert sehr stark mit Tetrasulfonat-phthalocyaninatkupfer(II) und bildet sowohl in Dimethylsulfoxid als auch im festen Zustand elektrostatisch stabilisierte Schichtverbindungen

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Received January 9, 1998. Accepted (revised) May 4, 1998

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Toma, H., Araki, K. & Silva, E. Synthesis and Characterization of a Novel Dodecanuclear Porphyrin Ruthenium Cluster. Monatshefte fuer Chemie 129, 975–984 (1998). https://doi.org/10.1007/PL00010119

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  • DOI: https://doi.org/10.1007/PL00010119

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