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Science 23 January 1998:
Vol. 279. no. 5350, pp. 540 - 542
DOI: 10.1126/science.279.5350.540
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Reports

Bimetallic System for Nitrogen Fixation: Ruthenium-Assisted Protonation of Coordinated N2 on Tungsten with H2

Yoshiaki Nishibayashi, Shotaro Iwai, Masanobu Hidai *

Treatment of the tungsten dinitrogen complex cis-[W(N2)2(PMe2Ph)4] (Me = methyl, Ph = phenyl) with an equilibrium mixture of [RuCl(dppp)2]X and trans-[RuCl(eta 2-H2)(dppp)2]X [X = BF4, PF6, or OSO2CF3; dppp = 1,3-bis(diphenylphosphino)propane] under 1 atmosphere of dihydrogen at 55 degrees Celsius for 24 hours gave NH3 in moderate yield. The same reaction in the presence of acetone produced acetone azine in high yield. None of these reactions proceeded in the absence of dihydrogen.

Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan.
*   To whom correspondence should be addressed.

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Dinitrogen Dissociation on an Isolated Surface Tantalum Atom.
P. Avenier, M. Taoufik, A. Lesage, X. Solans-Monfort, A. Baudouin, A. de Mallmann, L. Veyre, J.-M. Basset, O. Eisenstein, L. Emsley, et al. (2007)
Science 317, 1056-1060
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