The study of molecular magnetism involves the research of ferromagnetic interactions in the organic radicals, spin frustration, spin state transition, optical magnetism, single molecular magnets and chiral magnets. Here, the spin states of molecules are directly related to the oxidation states of metal cations and organic ligands. While the oxidation states of molecules are manipulated by external stimuli, such as electrochemical methods, it is rational to expect significant change in their magnetic properties. In this project, we intend to develop strategies of tuning the oxidation states of redox active coordination complexes, such as metal-organic frameworks or molecular magnets via reversible solid-state electrochemistry, and to understand the electrochemical process and the magnetic properties of unprecedented intermediate state of these molecular materials with series of in-situ techniques. This project, “Operando Magnetic Study under Solid-State Electrochemistry for Coordination Complexes ”, will be operated under the framework of Japan-China bilateral program, facilitate the communication and collaboration between two research groups, and provide opportunities for young researchers to pursue advance scientific achievements.
分子磁性研究では、有機強磁性、スピン平衡、スピン・フラストレーション、光磁石、単分子磁石、キラル磁性など、さまざまな研究テーマが検討されてきた。このような開殻電子系では、金属イオンや配位子のバレンス変化がスピン状態や磁気的相互作用の変化に直接反映されるため、系の酸化状態の変化によって、その磁気的性質が劇的に変化する。系のレドックスを固体状態のまま自由に制御することができれば、自在に磁気的性質を生み出すこと可能となる。本研究では、MOFや単分子磁石など、特異な磁気特性と可逆な電気化学レドックス活性の持ち合わせた系について、さまざまな電気化学operando計測を実施し、固体電気化学分子磁性とでも呼ぶべき研究領域を2国間の共同研究によって大きく発展させ、これを通じて若手人材の育成を行う。
