Kyushu University Academic Staff Educational and Research Activities Database
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Shinji Kanegawa Last modified date:2022.06.15

Graduate School
Undergraduate School

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 Reseacher Profiling Tool Kyushu University Pure
Academic Degree
Ph. D.
Country of degree conferring institution (Overseas)
Field of Specialization
Physical organic chemistry
Total Priod of education and research career in the foreign country
Research Interests
  • Study of Electronic Pyroelectricity via intramolecular electron transfer
    keyword : intramolecular electron transfer, pyroelectricity, polar crystal, magnetism, Chiral molecule
  • Development of Multi-functional Molecular Materials by Chirality
    keyword : Multi-functional Molecular materials, Chirality, Physical Properties, magnetism, Self Organization
  • Study about Photo-responsive multi-functional molecular materials based on spin crossover Fe complexes.
    keyword : molecular magnetism, conductivity, Dielectric property, Spin crossover complex
  • Investigation of Multi-functional Molecular Materials Based on Valence Tautomerism
    keyword : molecular magnetism, Multi-functionalized material, photo-induced electron transfer, metal complex
  • photo-magnetic properties of Co VT Complexes
    keyword : molecular magnetism, photo-induced electron transfer, metal complex
  • 2008- Development of Photo-switchable Molecular Magnetic Materials
    -2007 Study of monometallic Single-molecule Magnets Consisted of 2p-3d Heterospin System
    keyword : molecular magnetism, photo-induced electron transfer, organic radical, metal complex
Academic Activities
1. Sadhukhan, Pritam; Wu, Shu-Qi; Long, Jeremy Ian; Nakanishi, Takumi; Kanegawa, Shinji; Gao, Kaige; Yamamoto, Kaoru; Okajima, Hajime; Sakamoto, Akira; Baker, Michael L.; Kroll, Thomas; Sokaras, Dimosthenis; Okazawa, Atsushi; Kojima, Norimichi; Shiota, Yoshihito; Yoshizawa, Kazunari; Sato, Osamu, Manipulating electron redistribution to achieve electronic pyroelectricity in molecular [FeCo] crystals, NATURE COMMUNICATIONS, 10.1038/s41467-021-25041-4, 12, 1, 2021.08.
2. Shu Qi Wu, Meijiao Liu, Kaige Gao, Shinji Kanegawa, Yusuke Horie, Genki Aoyama, Hajime Okajima, Akira Sakamoto, Michael L. Baker, Myron S. Huzan, Peter Bencok, Tsukasa Abe, Yoshihito Shiota, Kazunari Yoshizawa, Wenhuang Xu, Hui Zhong Kou, Osamu Sato, Macroscopic Polarization Change via Electron Transfer in a Valence Tautomeric Cobalt Complex, Nature communications, 10.1038/s41467-020-15988-1, 11, 1, 2020.12, Polarization change induced by directional electron transfer attracts considerable attention owing to its fast switching rate and potential light control. Here, we investigate electronic pyroelectricity in the crystal of a mononuclear complex, [Co(phendiox)(rac-cth)](ClO<sub>4</sub>)·0.5EtOH (1·0.5EtOH, H<sub>2</sub>phendiox = 9, 10-dihydroxyphenanthrene, rac-cth = racemic 5, 5, 7, 12, 12, 14-hexamethyl-1, 4, 8, 11-tetraazacyclotetradecane), which undergoes a two-step valence tautomerism (VT). Correspondingly, pyroelectric current exhibits double peaks in the same temperature domain with the polarization change consistent with the change in dipole moments during the VT process. Time-resolved Infrared (IR) spectroscopy shows that the photo-induced metastable state can be generated within 150 ps at 190 K. Such state can be trapped for tens of minutes at 7 K, showing that photo-induced polarization change can be realized in this system. These results directly demonstrate that a change in the molecular dipole moments induced by intramolecular electron transfer can introduce a macroscopic polarization change in VT compounds..
3. Shinji Kanegawa, KANG SOONCHUL, Osamu Sato, Preparation and Valence Tautomeric Behavior of a Cobalt-Dioxolene Complex with a New TTF-functionalized Phenanthroline Ligand, CHEMISTRY LETTERS, 10.1246/cl.130118, 42, 7, 700-702, 2013.07.
4. Liu, T; Zhang, YJ; Kanegawa, S; Sato, O, Photoinduced Metal-to-Metal Charge Transfer toward Single-Chain Magnet, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 10.1021/ja1027953, 132, 24, 8250, 2010.06.
5. Shinji Kanegawa, Satoru Karasawa, Masataka Maeyama, Motohiro Nakano, and Noboru Koga, Crystal Design of Monometallic Single-Molecule Magnets Consisting of Cobalt-Aminoxyl Heterospins, Journal of the American Chemical Society, 10.1021/ja0767579, 130, 10, 3079-3094, 2008.03.
Membership in Academic Society
  • Japan Society for Molecular Science
  • The Japanes Photochemistry Associtation
  • Japan Society of Coordination Chemistry
  • American Chemical Society
  • The Chemical Society of Japan