Concentration-Directed Polymorphic Surface Covalent Organic Frameworks: Rhombus, Parallelogram, and Kagome
文献类型：期刊论文
| 作者 | Mo, Yi-Ping1,2,3; Liu, Xuan-He1,2,3; Wang, Dong1,2 |
| 刊名 | ACS NANO
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 11期号:11页码:11694-11700 |
| 关键词 | Surface Covalent Organic Frameworks Kagome Scanning Tunneling Microscopy Monomer Concentration Dynamic Covalent Bonds |
| 英文摘要 | Polymorphic single-layered covalent organic frameworks (sCOFs) via on-surface synthesis have been investigated by employing the tetradentate monomer 1,3,6,8-tetrakis(p-formylphenyl)pyrene with D-2h symmetry and ditopic linear diamine building blocks. Three kinds of well-ordered sCOFs, including rhombus, parallelogram, and Kagome networks, are observed on the graphite surface by scanning tunnel microscopy. The pore size and periodicity of sCOFs are tunable by employing diamine monomers with different lengths. Statistical analysis reveals that two types of quadrate networks are preferred at high concentration, whereas the occupancy of Kagome networks increases at low concentration. This trend can be understood by the differences in the network density of three kinds of networks. The reversibility and the self-sorting ability of the dynamic covalent reaction make it possible to control the polymorphic distribution similar to the principle demonstrated in supramolecular self-assembly. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38458]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Inst Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, CAS Res & Educ Ctr Excellence Mol Sci, Inst Chem, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mo, Yi-Ping,Liu, Xuan-He,Wang, Dong. Concentration-Directed Polymorphic Surface Covalent Organic Frameworks: Rhombus, Parallelogram, and Kagome[J]. ACS NANO,2017,11(11):11694-11700. |
| APA | Mo, Yi-Ping,Liu, Xuan-He,&Wang, Dong.(2017).Concentration-Directed Polymorphic Surface Covalent Organic Frameworks: Rhombus, Parallelogram, and Kagome.ACS NANO,11(11),11694-11700. |
| MLA | Mo, Yi-Ping,et al."Concentration-Directed Polymorphic Surface Covalent Organic Frameworks: Rhombus, Parallelogram, and Kagome".ACS NANO 11.11(2017):11694-11700. |
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来源：化学研究所
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