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Conjugated organic framework with three-dimensionally ordered stable structure and delocalized π clouds
Open accessAbstract
Covalent organic frameworks are a class of crystalline organic porous materials that can utilize π–π-stacking interactions as a driving force for the crystallization of polygonal sheets to form layered frameworks and ordered pores. However, typical examples are chemically unstable and lack intrasheet π-conjugation, thereby significantly limiting their applications. Here we report a chemically stable, electronically conjugated organic framework with topologically designed wire frameworks and open nanochannels, in which the π conjugation-spans the two-dimensional sheets. Our framework permits inborn periodic ordering of conjugated chains in all three dimensions and exhibits a striking combination of properties: chemical stability, extended π-delocalization, ability to host guest molecules and hole mobility. We show that the π-conjugated organic framework is useful for high on-off ratio photoswitches and photovoltaic cells. Therefore, this strategy may constitute a step towards realizing ordered semiconducting porous materials for innovations based on two-dimensionally extended π systems. Covalent organic frameworks can utilize π-stacking interactions for the formation of ordered, layered frameworks. Here, the authors report an ordered framework with tailored π-interactions resulting in periodic ordering in three dimensions, which leads to enhanced stability and electronic properties.
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Metadata
- Authors
- Guo, J., Xu, Y., Jin, S., Chen, L., Kaji, T., Honsho, Y., Addicoat, M. A., Kim, J., Saeki, A., Ihee, H., Seki, S., Irle, S., Hiramoto, M., Gao, J., & Jiang, D.
- Venue
- Nature Communications
- Published
- 2013-11-13
- Volume
- 4
- Issue
- 1
- Pages
- 2736-2736
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2122358282
- Cited by
- 689
- References
- 0
- FWCI
- 13.47
- Type
- journal article
- Language
- en
- Open access
- hybrid
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