Abstract
In the course of our studies of trinuclear osmium cluster complexes with bridging sulfido and hydrido ligands, the new compounds Os3(μ-H)(μ-SR)(CO)9(PHCy2) (Cy = cyclohexyl) with R = phenyl, (I) (nonacarbonyl-1κ3C,2κ3C,3κ3C-dicyclohexylphosphine-3κP-μ-hydrido-1:2κ2H-μ-phenylthio-1:2κ2S-triangulo-triosmium), [Os3H(C6H5S)(C12H23P)(CO)9], and R = naphthyl, (II) [nonacarbonyl-1κ3C,2κ2C,3κ4C-dicyclohexylphosphine-2κP-μ-hydrido-1:2κ2H-μ-(2-naphthylthio)-1:2κ2S-triangulo-triosmium], [Os3H(C10H7S)(C12H23P)(CO)9], were prepared. We report on these two phosphine-substituted complexes, which exhibit perceptible changes of the Os—Os bond parameters due to the ligand-substitution pattern.
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