Ruthenium and osmium carbonyl clusters incorporating stannylene and stannyl ligands.

作者： Shariff E Kabir , Arun K Raha , Mohammad R Hassan , Brian K Nicholson , Edward Rosenberg

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摘要: The reaction of [Ru3(CO)12] with Ph3SnSPh in refluxing benzene furnished the bimetallic Ru–Sn compound [Ru3(CO)8(μ-SPh)2(μ3-SnPh2)(SnPh3)2] 1 which consists a SnPh2 stannylene bonded to three Ru atoms give planar tetra-metal core, two peripheral SnPh3 ligands. ligand forms very short bond one atom [Sn–Ru 2.538(1) A] and long bonds other 3.074(1) A]. germanium [Ru3(CO)8(μ-SPh)2(μ3-GePh2)(GePh3)2] 2 was obtained from Ph3GeSPh has similar structure that as evidenced by spectroscopic data. Treatment [Os3(CO)10(MeCN)2] yielded Os–Sn [Os3(CO)9(μ-SPh)(μ3-SnPh2)(MeCN)(η1-C6H5)] 3. Cluster 3 superficially metal but different bonding mode respect 1. Ph2Sn group is most closely Os(2) Os(3) [2.786 2.748 A respectively] significantly longer Os(1), 2.998 indicating weak back-donation Sn. bridging dppm [Ru3(CO)10(μ-dppm)] afforded [Ru3(CO)6(μ-dppm)(μ3-S)(μ3-SPh)(SnPh3)] 5. Compound 5 contains an open triangle simultaneously capped sulfido PhS on opposite sides cluster Ru–Ru edges Ph3Sn occupying axial position not bridged ligand.

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Ruthenium and osmium carbonyl clusters incorporating stannylene and stannyl ligands.

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Ruthenium and osmium carbonyl clusters incorporating stannylene and stannyl ligands.

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