2020 Fiscal Year Final Research Report
Development of catalytic nitrogen fixation by first transition metal complexes bearing hard-soft ligands
Project/Area Number |
19K23645
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Multi-year Fund |
Review Section |
0502:Inorganic/coordination chemistry, analytical chemistry, inorganic materials chemistry, energy-related chemistry, and related fields
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Research Institution | The University of Tokyo |
Principal Investigator |
Kuriyama Shogo 東京大学, 大学院工学系研究科(工学部), 助教 (50850723)
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Project Period (FY) |
2019-08-30 – 2021-03-31
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Keywords | 窒素固定 / 鉄 / ロジウム / イリジウム / ピンサー配位子 |
Outline of Final Research Achievements |
In this research, transition metal-dinitrogen complexes with pincer ligands bearing both a hard donor and a soft donor were synthesized to develop the catalytic nitrogen fixation under mild reaction conditions. As a result, it was found that an iron complex having an anionic PCP-type pincer ligand worked as a highly active catalyst for the reduction of dinitrogen into ammonia and hydrazine. Also, rhodium- and iridium-catalyzed formation of silylamine from dinitrogen was developed by using a rhodium complex having an anionic PNP-type pincer ligand and an iridium complex having an anionic PCP-type pincer ligand as catalysts, respectively.
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Free Research Field |
有機金属化学
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Academic Significance and Societal Importance of the Research Achievements |
本研究で開発した鉄錯体は、窒素分子からの触媒的アンモニア・ヒドラジン生成反応に対してこれまで報告されている他の鉄錯体を超える触媒活性を有することを見出した。また、ロジウム・イリジウム錯体による触媒的シリルアミン生成反応は、ロジウム・イリジウム触媒による窒素固定反応の世界初の例である。本研究で得られた成果は、遷移金属錯体による温和な条件下における触媒的窒素固定反応に対して新たな知見を与えるものである。
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