Construction of highly-stable covalent organic framework with combined enol-imine and keto-enamine linkages

A novel covalent organic framework (COF) (Tp-BI-COF) with combined ketimine-type enol-imine and keto-enamine linkages was prepared through a cascade of ketimine condensation followed by aldimine condensation and characterized by XRD, solid state (13)C NMR, IR, TGA and BET. Tp-BI-COF showed high stab...

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Detalles Bibliográficos
Autores principales: Jiang, Jian, He, Kaiyu, Cai, Xue, Yu, Hong, Zuo, Minghui, Yun, Guan, Yun, Tao, Ma, Yue, Zhang, Zitong, Liu, Yunling, Wang, Zhenlu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10184012/
https://www.ncbi.nlm.nih.gov/pubmed/37197180
http://dx.doi.org/10.1039/d3ra02251j
Descripción
Sumario:A novel covalent organic framework (COF) (Tp-BI-COF) with combined ketimine-type enol-imine and keto-enamine linkages was prepared through a cascade of ketimine condensation followed by aldimine condensation and characterized by XRD, solid state (13)C NMR, IR, TGA and BET. Tp-BI-COF showed high stability toward acid, organic solvent, and boiling water. The 2D COF exhibited photochromic properties after being irradiated with a xenon lamp. The stable COF, with aligned one-dimensional nanochannels, provided nitrogen sites on pore walls, which confine and stabilize the H(3)PO(4) in the channel via hydrogen-bonding interactions. After loading with H(3)PO(4), the material showed excellent anhydrous proton conductivity.

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