Investigation of chemical reaction within the nano-scale flask of endo-fullerene

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K05655
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Kyoto University
• Principal Investigator: Kato Tatsuhisa 京都大学, 国際高等教育院, 教授 (80175702)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: 内包フラーレン / 電子スピン共鳴測定 / SQUID測定 / 酸素基底三重項状態 / 一酸化窒素ラジカル / 電子スピンエコー磁場掃引スペクトル / 電子スピンエコー信号減衰変調スペクトル / 二次元HYSCOREスペクトル

Outline of Final Research Achievements

O2@openC60 and NO@openC60, which were synthesized by a organic surgery chemistry, could be used for the investigation of chemical reaction within the nano-scale flask of endo-fullerene. The interaction between O2 (NO) and fullerene cage was clarified by electron spin resonance measurements. The fullerene cage gave certain disturbance toward the ground electronic wave function of endo-O2, or NO, resulting in the vanish of the axial symmetry of homo-diatomic molecule. In addition to the disturbance, the fullerene cage gave some shielding effect which prevents neighboring molecules from the inter-molecular interaction, then the the isolated-molecule properties were kept even in the condensed phase.

Free Research Field

物理化学

Academic Significance and Societal Importance of the Research Achievements

外科手術的有機化学合成法で酸素分子O2とNOラジカルがフラーレンケージC60に内包された分子(O2@openC60，NO@openC60)は，フラーレンC60をナノサイズ反応容器と見なすことが可能であり，凝集状態であっても孤立した分子の特性を保存することが確かめられた．このことで，フラーレンケージは反応容器として，ナノサイズ化学反応追跡のための反応場となり得ることを示せた．