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Stepwise Lateral Extension of Phenyl‐Substituted Linear Polyphenylenes
https://oist.repo.nii.ac.jp/records/1275
https://oist.repo.nii.ac.jp/records/12756e019e3b-35b1-4fc3-87fe-cd0c7ff95fd0
名前 / ファイル | ライセンス | アクション |
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Hou_et_al-2020-Macromolecular_Chemistry_and_Ph (2.6 MB)
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Creative Commons Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-03-12 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Stepwise Lateral Extension of Phenyl‐Substituted Linear Polyphenylenes | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Hou, Ian Cheng‐Yi
× Hou, Ian Cheng‐Yi× Narita, Akimitsu× Müllen, Klaus |
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書誌情報 |
en : Macromolecular Chemistry and Physics 巻 221, 号 1, p. 1900374, 発行日 2019-11-07 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Polyphenylenes (PPs) are unique polymers showing high mechanical strength and chemical stability, and having potential applications, for example, in proton transfer and gas‐separation membranes. Moreover, phenyl‐substituted linear PPs can serve as precursors for bottom‐up syntheses of graphene nanoribbons (GNRs), a new class of nanoscale carbon materials that appear promising for nanoelectronics. Notably, lateral extensions of linear PPs with appropriate “branched” phenyl substituents, that is, avoiding spatial overlap of benzene rings in their projections into a plane, can lead to wider GNRs with modulated electronic and optical properties. GNRs with widths up to ≈2 nm are obtained, but synthetic methods to further expand PPs laterally so as to achieve even wider GNRs have not yet been developed. Here, phenyl‐substituted linear PPs bearing two ethynyl groups at “outer” positions in each repeating unit, together with 3,4‐diphenylcyclopentadienones bearing a trimethylsilyl‐protected ethynyl group are used for stepwise lateral extension of the PPs, based on a sequence of Diels–Alder cycloadditions and deprotections. Each successive reaction step is corroborated by 1H NMR and IR spectroscopy, as well as gel permeation chromatography, providing a new pathway toward branched polyphenylenes with linear‐PP‐backbones that can potentially serve as precursors of wider GNRs with tunable electronic bandgaps. | |||||
出版者 | ||||||
出版者 | WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1022-1352 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1521-3935 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1002/macp.201900374 | |||||
権利 | ||||||
権利情報 | © 2019 The Author(s) | |||||
情報源 | ||||||
関連名称 | https://creativecommons.org/licenses/by/4.0/ | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://onlinelibrary.wiley.com/doi/full/10.1002/macp.201900374 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |