Molybdenum-catalyzed reduction of molecular dinitrogen into ammonia under ambient reaction conditions |
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Institution: | Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Yayoi, Bunkyo-ku 113-8656, Japan |
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Abstract: | Synthesis of transition metal–dinitrogen complexes and stoichiometric transformations of their coordinated dinitrogen into ammonia and hydrazine have so far been well investigated in order to achieve a novel nitrogen fixation under ambient conditions. As an extension of our study, the dimolybdenum–dinitrogen complex bearing PNP pincer ligands has been found to work as an effective catalyst for the formation of ammonia from dinitrogen, where 52 equiv of ammonia are produced based on the catalyst (26 equiv of ammonia are produced based on the molybdenum atom of the catalyst). This is the most effective catalytic reaction system for the formation of ammonia from molecular dinitrogen catalyzed by transition metal–dinitrogen complexes as catalysts under ambient reaction conditions. Herein, we describe recent results concerning the catalytic reaction, including the proposed reaction pathway. |
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Keywords: | Ammonia Catalytic reaction Molecular dinitrogen Molybdenum Nitrogen fixation Protonation Reduction |
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