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Osamu Sato Last modified date:2017.04.26



Graduate School


E-Mail
Homepage
http://magnet.cm.kyushu-u.ac.jp/
Phone
092-802-6204
Fax
092-802-6205
Academic Degree
Dr. Eng.
Field of Specialization
Photochemistry
Research
Research Interests
  • Development of photo-functional materials
    keyword : Photomagnetism, spin crossover, valence tautomerism, photonic crystal
    2005.04A reversible tuning and a persistent (irreversible) modification of physical properties by external stimuli are one of the main challenges in materials science. Especially, photo-control over the physical properties is important from the viewpoint of the practical application as well as the basic science. The photo-tunable compounds can be used future memory devices, optical switches and so on. Along this line, we are currently studying photo-tunable molecular magnets, valence tautomeric compounds, spin-crossover complexes and photonic crystals..
Academic Activities
Papers
1. Osamu Sato, Dynamic molecular crystals with switchable physical properties, NATURE CHEMISTRY, 8, 7, 644-656, 2016.07.
2. Osamu Sato, Shinji Kanegawa, Kazunari Yoshizawa, Takashi Kamachi, Yoshihito Shiota, KANG SOONCHUL, SU Shengqun, YAO Zishuo, HUANG Yougui, Nobuaki Azuma, Yuji Miyazaki, Motohiro Nakano, Goro Murata, Sadamu Takeda, Assembling an alkyl rotor to access abrupt and reversible crystalline deformation of a cobalt(II) complex, Nature Commun., 6, 2015.6.8810
Nature Communications 6, Article number: 8810 (2015), 2015.11.
3. 佐藤 治, 吉澤 一成, 塩田 淑仁, KANG SOONCHUL, Hui Zheng, Tao Liu, Shinji Kanegawa, 濱地 晃平, 杉本 邦久, 速水 真也, 美藤 正樹, 中村 哲也, 中野 元裕, Michael L. Baker, 野尻 浩之, Chunying Duan, A Ferromagnetically Coupled Fe42 Cyanide-Bridged Nanocage, Nature Commun., 6, 5955 (2015), 2015.01.
4. Osamu Sato, Tao Liu, Shinya Hayami, KANG SOONCHUL, Shinji Kanegawa, Masaki Mito, Yoshihito Shiota, Kazunari Yoshizawa, A light-induced spin crossover actuated single-chain magnet, Nature Communications, 2013.11.
5. Osamu Sato, Photoswitchable Dynamic Magnetic Relaxation in a Well-Isolated {Fe2Co} Double-Zigzag , Angew. Chem. Int. Ed., 2012, 51, 5119-5123, 2012.04.
6. T. Liu, D.-P. Dong, S. Kanegawa, S. Kang, O. Sato, Y. Shiota, K. Yoshizawa, S. Hayami, S. , Reversible Electron Transfer in an {Fe2Co} Linear Trinuclear Complex induced by Thermally Treatment and Photoirraditaion, Angew. Chem. Int. Ed., 2012, 51, 4367-4370, 2012.03.
7. Tao Liu, Yan-Juan Zhang, S. Kanegawa and O. Sato, Water-Switching of Metal-to-Metal Charge Transfer Induced Spin Transition in a Microporous Framework, Angew. Chem. Int. Ed., 2010, 49, 8645-8648, 2010.11.
8. Tao Liu, Yan-Juan Zhang, Shinji Kanegawa and Osamu Sato , Photoinduced Metal-to-Metal Charge Transfer towards Single-Chain Magnet, J. Am. Chem. Soc., 2010, 132, 8250-8251, 2010.06.
9. Yan-Juan Zhang, Tao Liu, Shinji Kanegawa and Osamu Sato , Interconversion between a Nonporous Nanocluster and a Microporous Coordination Polymer Showing Selective Gas Adsorption, J. Am. Chem. Soc., 132, 912-913, 2010.01.
10. Osamu Sato , An Electric Effect, Nature Chem., 2, 10-11, 2010.01.
11. Gergely Juhász, Ryotaro Matsuda, Shinji Kanegawa, Kaori Inoue, O. Sato, Kazunari Yoshizawa , Bistability of Magnetization without Spin-Transition in a High-Spin Cobalt(II) Complex due to Angular Momentum Quenching, J. Am. Chem. Soc., 131, 4560-4561, 2009.03.
12. D.Y. Wu, O. Sato, Y. Einaga, C.-Y. Duan, A Spin Crossover Cluster Exhibiting Mixed-Spin [Fe(II)hs2Fe(II)ls2] Structure and Synergy between Spin Transition and Magnetic Interaction, Angew. Chem. Int. Ed., 48, 1475-1478, 2009.02.
13. Y.-J. Zhang, T. Liu, S. Kanegawa, O. Sato, Reversible Single-Crystal-to-Single-Crystal Transformation from Achiral Anti- ferromagnetic Hexanuclears to a Chiral Ferrimagnetic Double Zigzag Chain, J. Am. Chem. Soc., , 2009.05.
14. K. Takahashi, H.-B. Cui, Y. Okano, H. Kobayashi, H. Mori, H. Tajima, Y. Einaga, O. Sato , Evidence of the Chemical Uniaxial Strain Effect on Electrical Conductivity in the Spin-Crossover Conducting Molecular System: [FeIII(qnal)2][Pd(dmit)2]5•Acetone, J. Am. Chem. Soc., 130, 6688–6689., 2008.05.
15. O. Sato, A.L. Cui, R. Matsuda, J. Tao, S. Hayami, Photoinduced Valence tautomerism in Co Compounds, Acc. Chem. Res., 40, 361-369, 2007.05.
16. Sato, O., Tao J., Zhang Y.Z., Control of Magnetic Properties through External Stimuli, Angew. Chem. Int. Ed., 46, 2152-2187, 2007.04.
17. Yue-Ling Bai, Jun Tao, Wolfgang Wernsdorfer, O. Sato, Rong-Bin Huang, and Lan-Sun Zheng, Coexistence of Magnetization Relaxation and Dielectric Relaxation in a Single-Chain Magnet, J. Am. Chem. Soc., 128, 16428-16429, 2006.12.
18. J. Tao, H. Maruyama, O. Sato, Valence tautomeric transitions with thermal hysteresis around room temperature and photoinduced effects observed in a cobalt-tetraoxolene complex., J. Am. Chem. Soc., 2006.02.
19. Z.-H. Ni, H.-Z. Kou, L.-F. Zhang, C. Ge, A.-L. Cui, R.-J. Wang, Y.-D. Li, O. Sato, [MnIII(salen)]6[FeIII(bpmb)(CN)2]6•7H2O: a Unique Cyanide-Bridged Nanosized Molecular Wheel, Angew. Chem. Int. Ed. Engl., 44, 47, 2005.12.
20. T. Yamamoto, Y. Umemura, O. Sato, Y. Einaga, Observation of the Anisotropic Photoinduced Magnetization Effect in Co-Fe Prussian Blue Thin Films Fabricated by Using the Clay Langmuir-Blodgett Films as a Template, J. Am. Chem. Soc., 127, 46, 2005.11.
21. Mikami R., Taguchi M., Yamada K., Suzuki K., Sato O., Einaga Y., Reversible Photo-Switching of the Magnetization of Iron OxideNanoparticles at Room Tenperature, Angew.Chem.Int.Ed, 43, 6135-6139 (2004), 2004.05.
22. Liu, H.-W. Matsuda, K. Gu, Z.-Z., Takahashi, K. Cui, A.-L. Nakajima, R. Fujishima A. & Sato, O., Reversible Valence Tautomerism Induced by a Single-Shot Laser Pulse in a Cobalt-Iron Prussian Blue Analogue., Phys. Rev. Lett., 90, 167403 (2003).
23. Sato, O., Hayami, S., Einaga, Y. & Gu, Z.-Z., Control of the Magnetic and Optical Properties in Molecular Compounds by Electrochemical, Photochemical and Chemical Methods., Bull. Chem. Soc. Jpn, 76, 443-470 (2003).
24. Gu, Z.-Z. Uetsuka, H., Takahashi, K., Nakajima, R., Onishi, H., Fujishima, A., Sato, O., Structural Color and the Lotus Effect, Angew. Chem. Int. Ed. Engl., 42, 894 (2003), 2003.01.
25. Sato, O., Optically Switchable Molecular Solids: Photoinduced Spin-Crossover, Photochromism and Photoinduced Magnetization., Acc. Chem. Res., 36, 692 (2003).
26. Meng, Q.-B. Takahashi, K., Zhang, X. -T., Stanto, I., Gu, Z. -Z., Fujishima, A., Sato, O., Fabrication of Efficient and Stable Solid State Dye-sensitized Solar Cell., Langmuir, 19, 3572-3574, 2003.01.
27. Gu, Z.-Z., Fujishima, A. & Sato, O., Patterning of a Colloidal Crystal Film on a Modified Hydrophilic and Hydrophobic Surface., Angew. Chem. Int. Ed. Emgl., 41, 2067-2070 (2002)..
28. Gu, Z.-Z. Horie, R., Kubo, S., Yamada, Y., Fujishima, A. & Sato, O., Fabrication of a Metal-coated Three-dimensionally ordered Macroporous Film and its Application as a Refractive Index Sensor., Angew. Chem. Int. Ed. Engl., 41, 1153-1156 (2002)..
29. Gu, Z.-Z., Fujishima, A. & Sato, O., Fabrication of High Quality Opal Films with Controllable Thickness., Chem. Mater., 14, 760-765, 2002.01.
30. Shimamoto, N., Ohkoshi, S., Sato, O. & Hashimoto, K., Control of Charge-Transfer Induced Spin Transition Temperature on Cobalt-Iron Prussian Blue Analogues., Inorg. Chem., 41, 678-684, 2002.01.
31. Sato, O. Hayami, S., Gu, Z. -Z., Takahashi, K., Nakajima, R. & Fujishima, A., Photo-Induced Reverse Valence Tautomerism in a Metastable Co Compound., Chem. Phys. Lett., 355, 169-174, 2002.01.
32. Hayami, S., Gu, Z.-Z., Yoshiki, H., Fujishima, A. & Sato, O., Iron(III) Spin-Crossover Compounds with a Wide Apparent Thermal Hysteresis around Room Temperature., J. Am. Chem. Soc., 123, 11644-11650 (2001)..
33. Gu, Z.-Z. Hayami, S., Kubo, S., Meng, Q. -B., Einaga, Y., Tryk, D. A., Fujishima, A. & Sato, O., Fabrication of Structured Porous Film by Electrophoresis., J. Am. Chem. Soc., 123, 175-176 (2001).
34. Sato, O. Hayami, S., Gu, Z. -Z., Seki, K., Nakajima, R. & Fujishima, A., Photo-induced Long-Lived Intramolecular Electron Transfer in a Co Valence Tautomeric Complex., Chem. Lett., 874-875, 2001.01.
35. Gu, Z.-Z., Fujishima, A. & Sato, O., Photochemically Tunable Colloidal Crystals., J. Am. Chem. Soc., 122, 12387-12388 (2000).
36. Hayami, S. Gu, Z. -Z., Shiro, M., Einaga, Y., Fujishima, A., Sato, O., First Observation of Light Induced Excited Spin State Trapping for an Iron(III) Complex., J. Am. Chem. Soc., 122, 7126 (2000).
37. Sato, O., Einaga, Y., Fujishima, A., Hashimoto, K., Photo-induced Long-Range Magnetic Ordering of a Cobalt-Iron Cyanide, Inorg, Chem., 38, 4405 (1999), 1999.01.
38. Einaga, Y., Sato, O., Iyoda, T., Hashimoto, K. & Fujishima, A., Photo-functional Vesicles Containing Prussian Blue and Azobenzene., J. Am. Chem. Soc., 121, 3745-3750 (1999).
39. Yokoyama, T. Kiguchi, M., Ohta, T., Sato, O., Einaga, Y. & Hashimoto, K., Local Structure of a Trapped Photo-Excited State of a FeCo Cyanide Studiedby X-ray-Absorption Fine Structure Spectroscopy., Phys. Rev. B, 60, 9340-9346 (1999).
40. Yokoyama, T., Ohta, T., Sato, O. & Hashimoto, K., Characterization of Magnetic Materials of CoFe Cyanides by X-ray-absorption Fine-structure Spectroscopy., Phys. Rev. B, B58, 8257-8266 (1998).
41. Sato, O., Einaga, Y., Iyoda, T., Fujishima, A. & Hashimoto, K., Cation Driven Electron Transfer Involving a Spin Transition at Room Temperature in a Cobalt Iron Cyanide Thin Film., J. Phys. Chem., 101, 3903 (1997), 1997.01.
42. Sato, O., Iyoda, T., Fujishima, A., Hashimoto, K., Photoinduced Magnetization of a Cobalt Iron Cyanicle., Science, 272, 704 (1996).
43. Sato, O., Iyoda, T., Fujishima, A., Hashimoto, K, Electrochemically Tunable Magnetic Phase Transition in a High-Tc Chromium Cyanide Thin Film., Science, 271, 49 (1996)..
Presentations
1. Osamu Sato, Cyanide-Bridged Fe42 High-Spin Nanocage with S=90/2, The 9th Japanese-Russian Workshop on Open Shell Compounds and Molecular Spin Devices, 2015.11.11.
2. 佐藤 治, Dynamic Molecular Crystals with Swichable Physical Properities, 1st Japan-Australia Joint Symposium, 2016.09.10.
Educational
Social
Professional and Outreach Activities
We are collaborating with the scientists in Peking, Tsinghua, Southeast and Xiamen University..