Chemistry - A European Journal
Chemistry - A European Journal
5 years ago

Metalloradical Reactivity of RuI and Ru0 Stabilized by an Indole-Based Tripodal Tetraphosphine Ligand

Metalloradical Reactivity of RuI and Ru0 Stabilized by an Indole-Based Tripodal Tetraphosphine Ligand
Bas de Bruin, Wojciech I. Dzik, Fenna F. van de Watering, Joost N. H. Reek, Jarl Ivar van der Vlugt
The tripodal, tetradentate tris(1-(diphenylphosphanyl)-3-methyl-1H-indol-2-yl)phosphane PP3-ligand 1 stabilizes Ru in the RuII, RuI, and Ru0 oxidation states. The octahedral [(PP3)RuII(Cl)2] (2), distorted trigonal bipyramidal [(PP3)RuI(Cl)] (3), and trigonal bipyramidal [(PP3)Ru0(N2)] (4) complexes were isolated and characterized by single-crystal X-ray diffraction, NMR, EPR, IR, and ESI-MS. Both open-shell metalloradical RuI complex 3 and the closed-shell Ru0 complex 4 undergo facile (net) abstraction of a Cl atom from dichloromethane, resulting in formation of the corresponding RuII and RuI complexes 2 and 3, respectively. For whom the Ru tripod indoles: The octahedral [(PP3)RuII(Cl)2] (2), distorted trigonal bipyramidal [(PP3)RuI(Cl)] (3) and trigonal bipyramidal [(PP3)Ru0(N2)] (4) complexes were isolated. Both metalloradical RuI complex 3 and closed-shell Ru0 complex 4 undergo (net) Cl-atom abstraction from dichloromethane, resulting in formation of the corresponding RuII and RuI complexes 2 and 3, respectively.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201702727

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