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Reaction of Phosphaalkynes with [Ru4(CO)13(μ3-PPh)]: Synthesis of Unsymmetrically Capped Bisphosphinidene Complexes

DOI to cite this document:
Scheer, Manfred ; Kramkowski, Peter ; Krug, Joachim ; Kramkowski, Peter ; Corrigan, John F.
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Date of publication of this fulltext: 21 Jun 2010 12:45


The 62-electron cluster [Ru4(CO)13(μ3-PPh)] (1) reacts with phosphalkynes RCP [(R = tBu, Ar‘ (2,4,6-tBu3C6H2)] to yield a series of unsymmetrically capped bisphosphinidene clusters characterized by a ketene substituted μ4-PR ligand. The reaction pathway was followed by 31P-NMR spectroscopy and reveals that, in the first step of the reaction, a CO substitution of 1 occurs in order to form an ...


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