Catalytic transformation of dinitrogen into ammonia and hydrazine by iron-dinitrogen complexes bearing pincer ligand

Shogo Kuriyama, Kazuya Arashiba, Kazunari Nakajima, Yuki Matsuo, Hiromasa Tanaka, Kazuyuki Ishii, Kazunari Yoshizawa () and Yoshiaki Nishibayashi ()
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Shogo Kuriyama: School of Engineering, The University of Tokyo
Kazuya Arashiba: School of Engineering, The University of Tokyo
Kazunari Nakajima: School of Engineering, The University of Tokyo
Yuki Matsuo: Institute for Materials Chemistry and Engineering and International Research Center for Molecular System, Kyushu University
Hiromasa Tanaka: Institute for Materials Chemistry and Engineering and International Research Center for Molecular System, Kyushu University
Kazuyuki Ishii: Institute of Industrial Science, The University of Tokyo
Kazunari Yoshizawa: Institute for Materials Chemistry and Engineering and International Research Center for Molecular System, Kyushu University
Yoshiaki Nishibayashi: School of Engineering, The University of Tokyo

Nature Communications, 2016, vol. 7, issue 1, 1-9

Abstract: Abstract Synthesis and reactivity of iron-dinitrogen complexes have been extensively studied, because the iron atom plays an important role in the industrial and biological nitrogen fixation. As a result, iron-catalyzed reduction of molecular dinitrogen into ammonia has recently been achieved. Here we show that an iron-dinitrogen complex bearing an anionic PNP-pincer ligand works as an effective catalyst towards the catalytic nitrogen fixation, where a mixture of ammonia and hydrazine is produced. In the present reaction system, molecular dinitrogen is catalytically and directly converted into hydrazine by using transition metal-dinitrogen complexes as catalysts. Because hydrazine is considered as a key intermediate in the nitrogen fixation in nitrogenase, the findings described in this paper provide an opportunity to elucidate the reaction mechanism in nitrogenase.

Date: 2016
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DOI: 10.1038/ncomms12181

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