Development of Artificial Photosystem with a Carbon Cycle by Designing Multinuclear Metal Complex Catalysts

2015 Fiscal Year Final Research Report

• Project/Area Number: 25620045
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic chemistry
• Research Institution: Nara Women's University
• Principal Investigator: TANASE Tomoaki 奈良女子大学, 自然科学系, 教授 (50207156)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 多核金属錯体 / 金属触媒 / 人工光合成 / 二酸化炭素 / マンガンクラスター / ヒドリド錯体 / 多座配位子 / 多座ホスフィン

Outline of Final Research Achievements

This project intended to develop effectively designed multinuclear metal complexes which catalyze photo-induced oxidation of water and hydrogenation of carbon dioxide to formic acid, with an aim of establishing artificial photosystem by utilizing a carbon cycle as final goal. In the period of the project, octa-, dodeca-, trideca-, and tetradecanuclear manganese oxo clusters with diimino ligands were synthesized for candidates of oxidation catalysts, and their detailed structures and redox properties were investigated, and for reduction catalysts, hydride-bridged NiM (M = Rh, Ir) heterodinuclear complexes with a SPPS tetradentate ligand, and the hydride-bridged di- and tetranuclear copper complexes supported by a linear tetraphosphine ligand were prepared and characterized, and their reactions with carbon dioxide were examined.

Free Research Field

錯体化学，有機金属化学，生物無機化学，ナノ分子化学