2019 Fiscal Year Final Research Report
Development of novel transformations of molecular dinitrogen and dihydrogen
| Project Area | Precise Formation of a Catalyst Having a Specified Field for Use in Extremely Difficult Substrate Conversion Reactions |
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| Project/Area Number |
15H05798
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2015-06-29 – 2020-03-31
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| Keywords | 窒素固定 / 窒素 / 水素 / アンモニア |
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| Outline of Final Research Achievements |
We have developed catalytic nitrogen fixation under mild reaction conditions using transition metal complexes as catalysts. Typically, we have found that iron, cobalt, and vanadium-dinitrogen complexes bearing pyrrole-based anionic PNP-type pincer ligands and molybdenum complexes bearing pyridine-based PNP-type pincer ligands and N-heterocyclic carbene-based PCP-type pincer ligands worked as effective catalysts toward formation of ammonia and hydrazine from dinitrogen.
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| Free Research Field |
化学
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| Academic Significance and Societal Importance of the Research Achievements |
現行の工業的なアンモニア合成法であるハーバー・ボッシュ法は、高温高圧の極めて厳しい反応条件を必要としている。このハーバー・ボッシュ法に代わる次世代型窒素固定法として、極めて温和な反応条件で進行する触媒的アンモニア合成法の開発が望まれている。我々は遷移金属窒素錯体が常温常圧を含む極めて温和な反応条件下での触媒的アンモニアおよびヒドラジンが生成反応で有効な触媒として働くことを明らかにした。一連の研究成果は次世代型窒素固定法の開発に繋がる極めて重要な研究成果である。
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