Synthesis of single-crystalline sp-carbon-linked covalent organic frameworks through imine-to-olefin transformation.
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| Autores principales: | , , , , , , , , , , |
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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Nature chemistry
2025
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| _version_ | 1868266260609892352 |
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| author | Li, Shengxu Xu, Shunqi Lin, En Wang, Tonghai Yang, Haoyong Han, Junyi Zhao, Yuxiang Xue, Qunji Samorì, Paolo Zhang, Zhenjie Zhang, Tao |
| author_facet | Li, Shengxu Xu, Shunqi Lin, En Wang, Tonghai Yang, Haoyong Han, Junyi Zhao, Yuxiang Xue, Qunji Samorì, Paolo Zhang, Zhenjie Zhang, Tao Li, Shengxu Xu, Shunqi Lin, En Wang, Tonghai Yang, Haoyong Han, Junyi Zhao, Yuxiang Xue, Qunji Samorì, Paolo Zhang, Zhenjie Zhang, Tao |
| collection | PubMed - marine biology |
| contents | Synthesis of single-crystalline sp-carbon-linked covalent organic frameworks through imine-to-olefin transformation. Li, Shengxu Xu, Shunqi Lin, En Wang, Tonghai Yang, Haoyong Han, Junyi Zhao, Yuxiang Xue, Qunji Samorì, Paolo Zhang, Zhenjie Zhang, Tao sp-carbon-linked covalent organic frameworks (spc-COFs) are crystalline porous polymers with repeat organic units linked by sp carbons, and have attracted increasing interest due to their robust skeleton and tunable semiconducting properties. Single-crystalline spc-COFs with well-defined structures can represent an ideal platform for investigating fundamental physics properties and device performance. However, the robust olefin bonds inhibit the reversible-reaction-based crystal self-correction, thus yielding polycrystalline or amorphous polymers. Here we report an imine-to-olefin transformation strategy to form single-crystal spc-COFs. The isolated single crystals display rectangular nanotube-like domains with sizes up to approximately 24 μm × 0.8 μm × 0.8 μm, and permanent pore distribution around 1.1 nm. The highly conjugated olefin linkage endows the crystals with enhanced electronic connectivity which determines a remarkable room-temperature metal-free ferromagnetism (8.6 × 10 emu g). Our protocol is robust and generally applicable for the synthesis of single-crystalline spc-COFs for future spin-electron devices. |
| format | Artículo científico |
| id | pubmed_39762624 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Nature chemistry |
| record_format | pubmed |
| spellingShingle | Synthesis of single-crystalline sp-carbon-linked covalent organic frameworks through imine-to-olefin transformation. Li, Shengxu Xu, Shunqi Lin, En Wang, Tonghai Yang, Haoyong Han, Junyi Zhao, Yuxiang Xue, Qunji Samorì, Paolo Zhang, Zhenjie Zhang, Tao Synthesis of single-crystalline sp-carbon-linked covalent organic frameworks through imine-to-olefin transformation. Li, Shengxu Xu, Shunqi Lin, En Wang, Tonghai Yang, Haoyong Han, Junyi Zhao, Yuxiang Xue, Qunji Samorì, Paolo Zhang, Zhenjie Zhang, Tao sp-carbon-linked covalent organic frameworks (spc-COFs) are crystalline porous polymers with repeat organic units linked by sp carbons, and have attracted increasing interest due to their robust skeleton and tunable semiconducting properties. Single-crystalline spc-COFs with well-defined structures can represent an ideal platform for investigating fundamental physics properties and device performance. However, the robust olefin bonds inhibit the reversible-reaction-based crystal self-correction, thus yielding polycrystalline or amorphous polymers. Here we report an imine-to-olefin transformation strategy to form single-crystal spc-COFs. The isolated single crystals display rectangular nanotube-like domains with sizes up to approximately 24 μm × 0.8 μm × 0.8 μm, and permanent pore distribution around 1.1 nm. The highly conjugated olefin linkage endows the crystals with enhanced electronic connectivity which determines a remarkable room-temperature metal-free ferromagnetism (8.6 × 10 emu g). Our protocol is robust and generally applicable for the synthesis of single-crystalline spc-COFs for future spin-electron devices. |
| title | Synthesis of single-crystalline sp-carbon-linked covalent organic frameworks through imine-to-olefin transformation. |
| url | https://pubmed.ncbi.nlm.nih.gov/39762624/ |