| Olefin-linked covalent organic frameworks with twisted tertiary amine knots for enhanced ultraviolet detection |
| |
| 作者姓名： | Qianying Guo Hongyan Ji Lei Yang Daizong Ji Zhaolin Ai Shi Luo Jiatao Sun Yunqi Liu Dacheng Wei |
| |
| 作者单位： | 1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University;2. Institute of Molecular Materials and Devices, Fudan University;3. MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology |
| |
| 基金项目： | financially supported by the National Key R&D Program of China (Nos. 2021YFE0201400, 2018YFA0703200, 2020YFA0308800)；;National Natural Science Foundation of China (Nos. 51773041, 61890940, 21603038, 11974045)；;Shanghai Committee of Science and Technology in China (No. 18ZR1404900)； |
| |
| 摘 要： | Though Olefin-linked covalent organic frameworks(oCOFs) possess excellent π-electron delocalization,the barely reversible olefin linkage brings challenges for oCOFs’ synthesis and functionalization. Here, we synthesize new oCOFs with tertiary amine knots which have twisted configuration and electron-donating nature. Investigation into the structural variation and photoelectric performance shows that the twisted configuration of oCOF-TFPA could favor to the intramolecular charge transfer process ...
|
| 收稿时间： | 24 June 2021 |
Olefin-linked covalent organic frameworks with twisted tertiary amine knots for enhanced ultraviolet detection |
| |
| Qianying Guo,Hongyan Ji,Lei Yang,Daizong Ji,Zhaolin Ai,Shi Luo,Jiatao Sun,Yunqi Liu,Dacheng Wei.Olefin-linked covalent organic frameworks with twisted tertiary amine knots for enhanced ultraviolet detection[J].Chinese Chemical Letters,2022,33(5):2621-2624. |
| |
| Institution: | 1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China;2. Institute of Molecular Materials and Devices, Fudan University, Shanghai 200433, China;3. MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | Though Olefin-linked covalent organic frameworks (oCOFs) possess excellent π-electron delocalization, the barely reversible olefin linkage brings challenges for oCOFs’ synthesis and functionalization. Here, we synthesize new oCOFs with tertiary amine knots which have twisted configuration and electron-donating nature. Investigation into the structural variation and photoelectric performance shows that the twisted configuration of oCOF-TFPA could favor to the intramolecular charge transfer process and reduce the possibility of aggregation-caused quenching. Photoelectrical measurements and electric band structure calculation both verify the superiority of this oCOFs’ structure in photoelectric sensing. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
