CJCU

Chem. J. Chinese Universities ›› 1989, Vol. 10 ›› Issue (3): 322.

• Articles • Previous Articles     Next Articles

Kinetics and Mechanism of Oxygen Atom Transfer Reactions to M3(CO)12(M =Fe,Ru,Os)

Shen Jiankun1, Shi Yianlong1, Gao Yici1, Shi Qizhen1, Fred Basolo2   

  1. 1. Department of Chemistry, Lanzhou University, Lanzhou;
    2. Department of Chemistry, Northwest University, Evanston, I11, USA
  • Received:1987-09-16 Online:1989-03-24 Published:1989-03-24

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Abstract: Quantitative investigations are reported for the reactions of the triangular clusters M3(CO)12(M=Fe, Ru, Os) with trimethyl amine N-oxide in the presence of phosphorous ligand. The rates of the reactions are first orders in concentrations of M3(CO)12and of Me3NO, but zero-order in entering ligand concentration. The rates of the reactions decrease in the order Fe>Ru>Os. Amechanism is proposed which involves attack on carbonyl carbon with the formation of coordinatively unsaturated intermediates of the type M3(CO)11, which then rapidly react with the entering ligand.

Key words: Trimethyl amine N-oxide, Metal carbonyls, Kinetics and mechanism

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