NDLI: Nitrogen fixation catalyzed by ferrocene-substituted dinitrogen-bridged dimolybdenum–dinitrogen complexes: unique behavior of ferrocene moiety as redox active site

Content Provider	Royal Society of Chemistry (RSC)
Author	Nishibayashi, Yoshiaki Nakajima, Kazunari Yoshizawa, Kazunari Tanaka, Hiromasa Kuriyama, Shogo Arashiba, Kazuya
Copyright Year	2015
Abstract	A series of dinitrogen-bridged dimolybdenum–dinitrogen complexes bearing metallocene-substituted PNP-pincer ligands is synthesized by the reduction of the corresponding monomeric molybdenum–trichloride complexes under 1 atm of molecular dinitrogen. Introduction of ferrocene as a redox-active moiety to the pyridine ring of the PNP-pincer ligand increases the catalytic activity for the formation of ammonia from molecular dinitrogen, up to 45 equiv. of ammonia being formed based on the catalyst (22 equiv. of ammonia based on each molybdenum atom of the catalyst). The time profile for the catalytic reaction reveals that the presence of the ferrocene unit in the catalyst increases the rate of ammonia formation. Electrochemical measurement and theoretical studies indicate that an interaction between the Fe atom of the ferrocene moiety and the Mo atom in the catalyst may play an important role to achieve a high catalytic activity.
Starting Page	3940
Ending Page	3951
Page Count	12
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	6
Issue Number	7
Journal	Chemical Science
DOI	10.1039/c5sc00545k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Ammonia Pyridine Ligand Nitrogen Molybdenum Ferrocene
Content Type	Text
Resource Type	Article
Subject	Chemistry

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Nitrogen fixation catalyzed by ferrocene-substituted dinitrogen-bridged dimolybdenum–dinitrogen complexes: unique behavior of ferrocene moiety as redox active site