2013 Fiscal Year Final Research Report
Development of ferroelectrics based on molecular rotators
Project/Area Number |
23350085
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Functional materials/Devices
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Research Institution | Hokkaido University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
KUBO Kazuya 北海道大学, 電子科学研究所, 助教 (90391937)
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Project Period (FY) |
2011-04-01 – 2014-03-31
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Keywords | 分子ローター / 強誘電性 / 超分子 / クラウンエーテル / 磁性 |
Research Abstract |
Dielectric properties based on flip-flop motion of dipoles upon molecular rotation were investigated by changing arylammonium and crown ether derivatives. Adamantane derivative with pseudo C3 symmetry was also studied. Although pyridazinium has no NH3 substituent worked as rotational axis, the molecule can be fixed by weak hydrogen bonds in the crystalline voids. The molecular motion upon applying external field was resulted in a large dielectric response. It was also attempted to introduce two proton accepting sites in the rotator to evaluate the possibility of hybrid dielectric response by proton transfer and molecular rotation.
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[Journal Article] Molecule-Displacive Ferroelectricity in Organic Supramolecular Solids2013
Author(s)
H. Ye, Y. Zhang, S. Noro, K. Kubo, M. Yoshitake, Z. Liu, H. Cai, D. Fu, H. Yoshikawa, K. Awaga, R. G. Xiong and T. Nakamura
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Journal Title
Scientific Reports
Volume: 3
Pages: 2249
DOI
Peer Reviewed
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[Journal Article] Anion-Dependent Host-Guest Properties of Porous Assemblies of Coordination Complexes (PACs), [Cu(A)2(py)4] (A = PF6, BF4, CF3SO3, and CH3SO3; py = pyridine), based on Werner-Type Copper(II) Complexes in the Solid State2013
Author(s)
S. Noro, K. Fukuhara, K, Sugimoto, Y. Hijikata, K. Kubo and T. Nakamura
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Journal Title
Dalton Trans
Volume: 42
Pages: 11100-11110
DOI
Peer Reviewed
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[Journal Article] Magnetic Ordering of Spin Systems Having Fractal Dimensions Experimental Study2013
Author(s)
T. Naito, H. Yamamoto, K. Okuda. K. Konishi, H. Mayama, D. Yamaguchi, S. Koizumi, K. Kubo, T. Nakamura, T. Yamada, H. Kitagawa, and S. Hayami
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Journal Title
Eur. Phys. J. B
Volume: 86
Pages: 410
DOI
Peer Reviewed
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[Journal Article] Incorporation of Cationic Electron Donor of Ni-pyridyltetrathiafulvalene with Anionic Electron Acceptor of Polyoxometalate2012
Author(s)
R. Tsunashima, T. Matsumoto, N. Hoshino, W. Niiho, M. Kimura, K. Kondo, Y. Suyama, Y. Nishioka, J. Kawamata, S. Noro, T. Nakamura, T. Akutagawa and K. Ishiguro
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Journal Title
Dalton Transactions
Volume: 41
Pages: 10060-10064
DOI
Peer Reviewed
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