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Platinum Participation in the Hydrogenation of Phenylacetylene by Ru5(CO)15(C)[Pt(PBut3)]

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posted on 17.03.2004 by Richard D. Adams, Burjor Captain, Lei Zhu
The hydride and PhC2H complexes, Ru5(CO)146-C)[Pt(PBut3)](μ-H)2, 2, and Ru5(CO)135-C)(PhC2H)[Pt(PBut3)], 3, were obtained from the reactions of Ru5(CO)15(C)[Pt(PBut3)], 1, with hydrogen and PhC2H, respectively. Styrene was formed catalytically when hydrogen and PhC2H were allowed to react with 3 in combination, and the complex Ru5(CO)125-C)[PtPBut3](PhC2H)(μ-H)2, 4, containing both hydrides and a PhC2H ligand was formed. The catalysis is promoted by the presence of the platinum atom in the complexes.

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