A novel arene bonding mode in the mixed-metal cluster Os4Ru(μ-H) 3(CO) 12(μ3-η-C6H5) P(OMe)3 |
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| Authors: | RA Al-Mandhary Muna Jack Lewis and Paul R Raithby |
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| Institution: | Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, UK |
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| Abstract: | The ionic coupling of Os4H2(CO)12]2? with Ru(η6-C6H6)(MeCN)3]2+ affords the neutral mixed metal cluster Os4Ru(μH)2(CO)12(η6-C6H6) 1. The reaction of 1 with trimethylphosphite leads to the initial formation of the addition product Os4Ru(μH)2(CO)12(η6-C6H6)P(OMe)3 2, but this complex rearranges in solution to give Os4Ru(μ-H)3(CO)12(μ3-η6-C6H5)P(OMe)3 3. An X-ray structure of 3 shows that the metal core of the cluster is a ruthenium-spiked Os4 tetrahedron, with one hydrogen atom from the arene having transferred to the Os4 core, and one arene carbon bridging an Os-Os edge, while the ring as a whole remains η6-bound to the Ru atom. |
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| Keywords: | Osmium Ruthenium Arene Phosphite Crystal structure |
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