2013 Fiscal Year Final Research Report
Development of purely organic single-component conductors
| Project/Area Number |
23550155
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | Ehime University |
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Principal Investigator |
MISAKI Yohji 愛媛大学, 理工学研究科, 教授 (90202340)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIRAHATA Takashi 愛媛大学, 大学院理工学研究科, 講師 (40360565)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 分子性導体 / 多段階酸化還元 / サイクリックボルタンメトリー / ドナー・アクセプター系分子 / 電子構造 |
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| Research Abstract |
Several derivatives of brand-new donor-acceptor (D-A) systems 1-5 composed of DT-TTF and dicyanomethylidene and dicyanoquinodimethane groups were synthesized. Cyclic voltammetry revealed that the compound 1 and 3 exhibited multi-stage of oxidation and one-stage of reduction processes. The IR spectra of 1 and 3 demonstrated considerable contribution of polarized structures. Electronic spectra and theoretical calculation (DFT method) suggested that the absorption maximum of 1 at around 900 nm was due to intramolecular charge-transfer. The D-A system 1 exhibited conductivity of 10E-5 S/cm on a single crystal in spite of a single-component material.
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[Journal Article] Structural Transitions from Triangular to Square Molecular Arrangements in the Quasi-One-Dimensional Molecular Conductors (DMEDO-TTF)_2XF_6 (X = P, As, and Sb2012
Author(s)
Takashi Shirahata, Keita Shiratori, Shouhei Kumeta, Tadashi Kawamoto, Tadahiko Ishikawa, Shin-ya Koshihara, Yoshiaki Nakano, Hideki Yamochi, Yohji Misaki, Takehiko Mori
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Journal Title
J. Am. Chem. Soc.
Volume: 134(32)
Pages: 13330–13340
DOI
Peer Reviewed
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[Journal Article] Probing the metal-insulator phase transition in the (DMEDO-EBDT)_2PF_6 single crystal by optical measurements2012
Author(s)
Tadahiko Ishikawa, Makoto Kitayama, Aya Chono, Ken Onda, Yoichi Okimoto, Shin-ya Koshihara, Yoshiaki Nakano, Hideki Yamochi, Toru Morikawa, Takashi Shirahata, Yohji Misaki
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Journal Title
J. Phys.: Condens. Matter
Volume: 24(19)
Pages: 195501/1-9
DOI
Peer Reviewed
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