Orbital Views on Electron-Transport Properties of Cyclophanes: Insight into Intermolecular Transport
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- Xinqian Li
- Institute for Materials Chemistry and Engineering, Kyushu University
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- Aleksandar Staykov
- International Institute for Carbon-Neutral Energy Research, Kyushu University
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- Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University
抄録
<jats:title>Abstract</jats:title> <jats:p>Electron-transport properties of cyclophanes are investigated with qualitative Hückel molecular orbital analysis for better understanding of the intermolecular interaction in molecular devices. Charge and electron transfers often take place via through-space interactions, which are observed both in large biological molecules and in organic molecular crystals. Since the intermolecular electronic coupling in π-stacked structures plays an important role in total device performance, in this work [2,2]paracyclophane is studied to investigate the effect of the intermolecular interactions in aromatic hydrocarbons on its electron-transport properties. According to the orbital symmetry rule, the symmetry-allowed and symmetry-forbidden connections for electron transport between the benzene rings are predicted just from the phase and amplitude of the frontier orbitals. The meta connection is symmetry allowed for electron transport while the para and ortho connections are symmetry forbidden. The qualitative predictions made with the Hückel approximation are found consistent with the calculation results obtained with density functional theory. The qualitative but essential understanding in the orbital views would extend the application of the rule from a single molecule to a crystal structure for the development of high-performance molecular devices.</jats:p>
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 85 (2), 181-188, 2012-01-28
Oxford University Press (OUP)
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キーワード
詳細情報 詳細情報について
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- CRID
- 1360846644026971520
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- NII論文ID
- 130004153027
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- ISSN
- 13480634
- 00092673
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