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DOI | 10.1126/science.aan0202 |
Two-dimensional sp(2) carbon-conjugated covalent organic frameworks | |
Jin, Enquan1; Asada, Mizue2; Xu, Qing1; Dalapati, Sasanka1; Addicoat, Matthew A.3; Brady, Michael A.4; Xu, Hong1,2; Nakamura, Toshikazu2; Heine, Thomas5; Chen, Qiuhong1; Jiang, Donglin1 | |
2017-08-18 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 357期号:6352页码:673-676 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; England; USA; Germany |
英文摘要 | We synthesized a two-dimensional (2D) crystalline covalent organic framework (sp(2)c-COF) that was designed to be fully pi-conjugated and constructed from all sp(2) carbons by C=C condensation reactions of tetrakis(4-formylphenyl)pyrene and 1,4-phenylenediacetonitrile. The C=C linkages topologically connect pyrene knots at regular intervals into a 2D lattice with pi conjugations extended along both x and y directions and develop an eclipsed layer framework rather than the more conventionally obtained disordered structures. The sp(2)c-COF is a semiconductor with a discrete band gap of 1.9 electron volts and can be chemically oxidized to enhance conductivity by 12 orders of magnitude. The generated radicals are confined on the pyrene knots, enabling the formation of a paramagnetic carbon structure with high spin density. The sp(2) carbon framework induces ferromagnetic phase transition to develop spin-spin coherence and align spins unidirectionally across the material. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407793600031 |
WOS关键词 | POLARONS ; ELECTROLUMINESCENT ; CONDENSATION ; BIPOLARONS ; POLYMERS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196691 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Japan Adv Inst Sci & Technol, Sch Mat Sci, Field Energy & Environm, 1-1 Asahidai, Nomi 9231292, Japan; 2.Inst Mol Sci, Dept Mat Mol Sci, 38 Nishigo Naka, Okazaki, Aichi 4448585, Japan; 3.Nottingham Trent Univ, Sch Sci & Technol, Clifton Lane, Nottingham NG11 8NS, England; 4.Lawrence Berkeley Natl Lab, Mol Foundry & Adv Light Source, 1 Cyclotron Rd,Mailstop 15R0317, Berkeley, CA 94720 USA; 5.Univ Leipzig, Wilhelm Ostwald Inst Phys & Theoret Chem, Linnestr 2, D-04103 Leipzig, Germany |
推荐引用方式 GB/T 7714 | Jin, Enquan,Asada, Mizue,Xu, Qing,et al. Two-dimensional sp(2) carbon-conjugated covalent organic frameworks[J]. SCIENCE,2017,357(6352):673-676. |
APA | Jin, Enquan.,Asada, Mizue.,Xu, Qing.,Dalapati, Sasanka.,Addicoat, Matthew A..,...&Jiang, Donglin.(2017).Two-dimensional sp(2) carbon-conjugated covalent organic frameworks.SCIENCE,357(6352),673-676. |
MLA | Jin, Enquan,et al."Two-dimensional sp(2) carbon-conjugated covalent organic frameworks".SCIENCE 357.6352(2017):673-676. |
条目包含的文件 | 条目无相关文件。 |
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