Separation of Arylenevinylene Macrocycles with a Surface‐Confined Two‐Dimensional Covalent Organic Framework |
| |
| Authors: | Chunhua Liu Eunsol Park Dr Yinghua Jin Jie Liu Yanxia Yu Prof?Dr Wei Zhang Prof?Dr Shengbin Lei Prof?Dr Wenping Hu |
| |
| Institution: | 1. Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin, P. R. China;2. School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, P. R. China;3. Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO, USA |
| |
| Abstract: | A two‐dimensional surface covalent organic framework, prepared by a surface‐confined synthesis using 4,4′‐azodianiline and benzene‐1,3,5‐tricarbaldehyde as the precursors, was used as a host network to effectively immobilize arylenevinylene macrocycles (AVMs). Thus AVMs could be separated from their linear polymer analogues, which are the common side‐products in the cyclooligomerization process. Scanning tunneling microscopy investigations revealed efficient removal of linear polymers by a simple surface binding and solvent washing process. |
| |
| Keywords: | covalent organic frameworks host– guest chemistry macrocycles scanning tunneling microscopy surface chemistry |
|
|
