SOFT ACTIVATION OF THE C–S BOND: X-RAY DIFFRACTION AND SPECTROSCOPIC STUDY OF THE CLUSTER Ru4(μ4-S)(μ,η3-C3H5)2(CO)12
I. Y. Prikhod'ko, V. P. Kirin, V. A. Maksakov, A. V. Virovets, A. V. Golovin
Keywords: crystal structure, ruthenium carbonyl clusters, allyl, activation of C-S bonds
Pages: 748-752
Abstract
The complex Ru4(μ4-S)(μ,η3-C3H5)2(CO)12 is prepared and examined by IR and NMR spectroscopy; its crystal structure is determined (an automatic Bruker-Nonius X8 Apex four-circle diffractometer equipped with a 2-D CCD-detector, 100 K, graphite-monochromated molybdenum source, λ = 0.71073 Å). The crystal belongs to the orthorhombic crystal system with unit cell parameters a = 19.3781(9) Å, b = 12.2898(7) Å, c = 10.1726(4) Å, V = 2422.6(2) Å3, space group Pnma, Z = 4, composition C18H10O12Ru4S, dx = 2.343 g/cm3. The molecule of point symmetry C1 is situated on the mirror plane of the space group Pnma, two carbonyl groups at Ru2 and Ru3 atoms overlapping with the allylic ligand with a weight of 50% so that carbon atoms coincide. Thus, we have a racemic structure with two overlapping enantiomers of the molecule of Ru4(μ4-S)(μ,η3-C3H5)2(CO)12.
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