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Insertion reactions of acetylenes with a cyclopentadienyl–ruthenium phosphine hydride: structure of a butadienyl–ruthenium complex
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1971
Year
Materials ScienceInorganic ChemistryCyclopentadienyl–ruthenium Phosphine HydrideCrystal StructureEngineeringChemical BondCoordination ComplexOrganometallic CatalysisCatalysisButadienyl–ruthenium ComplexChemistryMolecular ChemistryMolecular ComplexCarbon–ruthenium σ-BondInsertion ReactionsBiomolecular EngineeringC–ru Bond
Reactions between Ru(PPh3)2(π-C5H5)(σ-C2R2H)[(I; R = CF3); (II; R = CO2Me)] and hexafluorobut-2-yne give Ru(PPh3)(π-C5H5)(C2R2·C4F6H)[(III; R = CF3); (IV; R = CO2Me)]; the crystal structure of (III) shows that it contains a buta-1,3-dienyl group, π-bonded to the metal via the double bond furthest from the carbon–ruthenium σ-bond, and the structure of (IV), as shown by its n.m.r. spectra, is unexpected in that the CF3C2CF3 group has apparently inserted into the C–H bond of (II) rather than into the C–Ru bond.