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Separation of Arylenevinylene Macrocycles with a Surface‐Confined Two‐Dimensional Covalent Organic Framework
Author(s) -
Liu Chunhua,
Park Eunsol,
Jin Yinghua,
Liu Jie,
Yu Yanxia,
Zhang Wei,
Lei Shengbin,
Hu Wenping
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201803937
Subject(s) - covalent bond , chemistry , surface (topology) , separation (statistics) , materials science , nanotechnology , organic chemistry , computer science , mathematics , geometry , machine learning
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.