Separation of Arylenevinylene Macrocycles with a Surface-Confined Two-Dimensional Covalent Organic Framework
Separation of Arylenevinylene Macrocycles with a Surface-Confined Two-Dimensional Covalent Organic Framework
复制标题
用表面限制的二维共价有机骨架分离亚芳基乙烯大环
DOI：
10.1002/anie.201803937
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发表时间：
2018-07-16
影响因子：
16.6
通讯作者：
Hu, Wenping
中科院分区：
文献类型：
--
作者：
Liu, Chunhua;Park, Eunsol;Hu, Wenping
以4，4-偶氮二苯胺和1，3，5-苯三甲醛为前体，通过表面限制合成法制备了一种二维表面共价有机骨架，并以此作为主体网络，对芳撑亚乙烯基大环（AVM）进行了有效的修饰.因此，AVM可以从其线性聚合物类似物中分离出来，这些线性聚合物类似物是环低聚过程中常见的副产物。扫描隧道显微镜的调查显示，通过一个简单的表面结合和溶剂洗涤过程中，线性聚合物的有效去除。
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.