Creation of amino acid coordinated multinuclear molecular catalysts and water reduction functionality

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K17945
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Energy-related chemistry
• Research Institution: Osaka University
• Principal Investigator: Kuwamura Naoto 大阪大学, 理学研究科, 助教 (80643791)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: 電気化学 / 含硫アミノ酸 / 異種金属錯体 / 水還元

Outline of Final Research Achievements

This project established the water reduction molecular catalysts based on amino acid and metal ions. The palladium(II) penicillaminato complexes revealed the catalytic water reduction behavior under electrochemical conditions. The incorporation of nickel(II) in the hetero- and multi-nuclear coordination system showed the increased efficiency on the water reduction catalytic behavior, which is the first example of the cooperative effect of metal ions on water reduction catalysis. In addition, the cysteinato coordination compounds were found to show the water reduction functionality as similar to penicillaminato coordination systems.

Free Research Field

錯体電気化学

Academic Significance and Societal Importance of the Research Achievements

本研究成果として、「アミノ酸を唯一の有機物として使用し、複雑な合成過程を必要としない水還元触媒分子の構築」を「硫黄架橋多核錯体アプローチ」により達成した点がある。合成プロセスを簡略化できる有効な手段を見出したといえる。また、アミノ酸錯体の電気化学を初めて明らかにし、アミノ酸配位化学への学術的貢献も果たした。