ID | 60765 |
フルテキストURL | |
著者 |
Ji, Zhenfei
Graduate School of Natural Science and Technology, Okayama University
Cheng, Zeliang
Graduate School of Natural Science and Technology, Okayama University
Mori, Hiroki
Research Institute for Interdisciplinary Science, Okayama University
Nishihara, Yasushi
Research Institute for Interdisciplinary Science, Okayama University
ORCID
Kaken ID
publons
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抄録 | We report the design, synthesis, and physicochemical properties of an array of phenanthro[2,1-b:7,8-b']dithiophene (PDT-2) derivatives by introducing five types of alkyl (CnH2n+1; n = 8, 10, 12, 13, and 14) or two types of decylthienyl groups at 2,7-positions of the PDT-2 core. Systematic investigation revealed that the alkyl length and the type of side chains have a great effect on the physicochemical properties. For alkylated PDT-2, the solubility was gradually decreased as the chain length was increased. For instance, C-8-PDT-2 exhibited the highest solubility (5.0 g/L) in chloroform. Additionally, substitution with 5-decylthienyl groups showed poor solubility in both chloroform and toluene, whereas PDT-2 with 4-decylthienyl groups resulted in higher solubility. Furthermore, UV-vis absorption of PDT-2 derivatives substituted by decylthienyl groups showed a redshift, indicating the extension of their pi-conjugation length. This work reveals that modification of the conjugated core by alkyl or decylthienyl side chains may be an efficient strategy by which to change the physicochemical properties, which might lead to the development of high-performance organic semiconductors.
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キーワード | phenacene-type compounds
thiophene ring
cross-coupling
alkyl side chains
UV-vis absorption
p-type organic semiconductors
organic field-effect transistor (OFET)
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発行日 | 2020-08-24
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出版物タイトル |
Molecules
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巻 | 25巻
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号 | 17号
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出版者 | MDPI
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開始ページ | 3842
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ISSN | 1420-3049
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資料タイプ |
学術雑誌論文
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言語 |
英語
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OAI-PMH Set |
岡山大学
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著作権者 | © 2020 by the authors.
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論文のバージョン | publisher
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PubMed ID | |
DOI | |
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関連URL | isVersionOf https://doi.org/10.3390/molecules25173842
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ライセンス | http://creativecommons.org/licenses/by/4.0/
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助成機関名 |
文部科学省
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助成番号 | 15H00751
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