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Narrow-Pore Engineering of Vinylene-Linked Covalent Organic Frameworks with Weak Interaction-Triggered Multiple Responses
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2023-08-30 , DOI: 10.1002/anie.202309125
Lin Zhu 1, 2 , Qian Zhang 3 , Fancheng Meng 1 , Mengqi Li 1 , Qifeng Liang 2 , Fan Zhang 1
Affiliation  

Two vinylene-linked COFs with narrow pore sizes of less than 1 nm were constructed by the condensation of tetramethylpyrazine as the smallest tetratopic monomer with linear aromatic dialdehyde monomers. Their aggregates in water feature negative charges and can be tuned through protonation/deprotonation, to give pore-size-dependent colorimetric responses to various anions with different pKa values with high selectivity.

中文翻译:

具有弱相互作用触发多重响应的亚乙烯基连接共价有机框架的窄孔工程

通过将最小四位单体四甲基吡嗪与线性芳香族二醛单体缩合,构建了两个孔径小于1 nm的亚乙烯基连接的COF。它们在水中的聚集体带有负电荷,可以通过质子化/去质子化进行调节,从而以高选择性对具有不同 p K a值的各种阴离子提供孔径依赖性的比色响应。
更新日期:2023-08-30
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