Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 10, Pages -Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc07146c
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Funding
- CREST, JST [JPMJCR1541]
- JSPS [JP17H01201, 18K19093, 20H05671, 20K21203]
- MEXT
- JSPS Research Fellowships for Young Scientists
- Grants-in-Aid for Scientific Research [20K21203, 20H05671, 18K19093] Funding Source: KAKEN
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This article discusses the challenging topic of nitrogen fixation into ammonia using homogeneous transition metal complexes under mild reaction conditions. Among these complexes, molybdenum has shown to be an effective catalyst under ambient reaction conditions, offering great potential for developing more efficient nitrogen fixation systems.
Nitrogen fixation using homogeneous transition metal complexes under mild reaction conditions is a challenging topic in the field of chemistry. Several successful examples of the catalytic conversion of nitrogen molecule into ammonia using various transition metal complexes in the presence of reductants and proton sources have been reported so far, together with detailed investigations on the reaction mechanism. Among these, only molybdenum complexes have been shown to serve as effective catalysts under ambient reaction conditions, in stark contrast with other transition metal-catalysed reactions that proceed at low reaction temperature such as -78 degrees C. In this feature article, we classify the molybdenum-catalysed reactions into four types: reactions via the Schrock cycle, reactions via dinuclear reaction systems, reactions via direct cleavage of the nitrogen-nitrogen triple bond of dinitrogen, and reactions via the Chatt-type cycle. We describe these catalytic systems focusing on the catalytic activity and mechanistic investigations. We hope that the present feature article provides useful information to develop more efficient nitrogen fixation systems under mild reaction conditions.
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