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Shinji Kanegawa Last modified date：2022.06.15

Assistant Professor / Department of Fundamental Organic Chemistry
Institute for Materials Chemistry and Engineering


Graduate School
Department of Chemistry
Graduate School of Sciences
Undergraduate School
Department of Chemistry
School of Sciences


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Homepage
https://kyushu-u.pure.elsevier.com/en/persons/shinji-kanegawa
　Reseacher Profiling Tool　Kyushu University Pure
http://magnet.cm.kyushu-u.ac.jp
Phone
092-802-6206
Fax
092-802-6207
Academic Degree
Ph. D.
Country of degree conferring institution (Overseas)
No
Field of Specialization
Physical organic chemistry
Total Priod of education and research career in the foreign country
00years00months
Research
Research Interests
  • Study of Electronic Pyroelectricity via intramolecular electron transfer
    keyword : intramolecular electron transfer, pyroelectricity, polar crystal, magnetism, Chiral molecule
    2020.04.
  • Development of Multi-functional Molecular Materials by Chirality
    keyword : Multi-functional Molecular materials, Chirality, Physical Properties, magnetism, Self Organization
    2016.04.
  • Study about Photo-responsive multi-functional molecular materials based on spin crossover Fe complexes.
    keyword : molecular magnetism, conductivity, Dielectric property, Spin crossover complex
    2010.04～2020.03.
  • Investigation of Multi-functional Molecular Materials Based on Valence Tautomerism
    keyword : molecular magnetism, Multi-functionalized material, photo-induced electron transfer, metal complex
    2010.04～2020.03.
  • photo-magnetic properties of Co VT Complexes
    keyword : molecular magnetism, photo-induced electron transfer, metal complex
    2008.05～2011.03.
  • 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
    2005.04～2008.03.
Academic Activities
Papers
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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.
Presentations
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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


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