Development of Supramolecular Complexes with Reaction Fields That Realize Assembly of Active Species and Multipoint Coordinative Capture

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K15578
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 34010:Inorganic/coordination chemistry-related
• Research Institution: University of Tsukuba
• Principal Investigator: Nakamura Takashi 筑波大学, 数理物質系, 助教 (90734103)
• Project Period (FY): 2019-04-01 – 2021-03-31
• Keywords: 超分子 / 錯体 / 配位結合 / 活性種 / 反応場 / 分子捕捉 / 大環状分子 / 銀

Outline of Final Research Achievements

In this research, multinuclear metal complexes which are the oligomers of chelate complex units have been designed and synthesized as supramolecular complexes possessing inner spaces in which coordination sites are assembled in an ordered manner. Their detailed structures and reactivities have been investigated and clarified. 1) A trinuclear Ni complex and a hexanuclear Pd complex of bpytrisalen, which is a triangular macrocyclic ligand with three bpy N2 chelation units and three salen N2O2 chelation units. 2) Synthetic study of cage-shaped complexes by the Schiff-base formation of triamine and bpy derivatives bearing hydroxyl and formyl groups. 3) A hexanuclear Ag complex of hexapap, which is a macrocyclic hexamer of pap N2O chelation unit.

Free Research Field

超分子化学

Academic Significance and Societal Importance of the Research Achievements

本研究では、配位サイトを秩序的に集積した内部空間をもつ超分子錯体を合成することができた。単に「金属を集積」するのではなく、「金属の配位サイトを集積」する設計により得られたこのような錯体は、本研究独自の成果である。本研究で得られた錯体は、多数の金属からの配位を利用して基質の配向を制御し、活性種同士を厳密な距離に規定して反応させることで、高難度な反応を実現する場になると期待される。