A ruthenium(IV) oxo complex that contains a tertiary diamine ligand

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Pages (from-to)967-970
Journal / PublicationJournal of the Chemical Society, Dalton Transactions
Issue number3
Publication statusPublished - 1990


The complex [Ru(terpy)(tmen)(OH2)]2+ (terpy = 2,2′:6′2″-terpyridine, tmen = N,N,N′,N′-tetra-methylethylenediamine) and its corresponding oxo complex have been prepared. Their spectral properties and redox properties in aqueous solution were investigated. Evidence for two one-electron redox processes has been obtained for the RuIV-RuIII and RuIII-RuII couples. The reactions of the new ruthenium(IV) oxo species with olefins have been found to proceed with second-order kinetics, rate = k2[RuIV][olefin] where k2 = (3.3 ± 0.3) × 10-3 and (2.0 ± 0.2) × 10-2 dm3 mol-1 s-1 at 25°C for norbornene and styrene respectively.