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Polyphosphonate covalent organic frameworks
Nature Communications ( IF 14.7 ) Pub Date : 2024-09-09 , DOI: 10.1038/s41467-024-51950-1
Ke Xu 1 , Robert Oestreich 2 , Takin Haj Hassani Sohi 2 , Mailis Lounasvuori 3 , Jean G A Ruthes 4, 5 , Yunus Zorlu 6 , Julia Michalski 2 , Philipp Seiffert 2 , Till Strothmann 2 , Patrik Tholen 7 , A Ozgur Yazaydin 8 , Markus Suta 2 , Volker Presser 4, 5 , Tristan Petit 3 , Christoph Janiak 2 , Jens Beckmann 9 , Jörn Schmedt Auf der Günne 1 , Gündoğ Yücesan 2
Affiliation  

Herein, we report polyphosphonate covalent organic frameworks (COFs) constructed via P-O-P linkages. The materials are synthesized via a single-step condensation reaction of the charge-assisted hydrogen-bonded organic framework, which is constructed from phenylphosphonic acid and 5,10,15,20‐tetrakis[p‐phenylphosphonic acid]porphyrin and is formed by simply heating its hydrogen-bonded precursor without using chemical reagents. Above 210 °C, it becomes an amorphous microporous polymeric structure due to the oligomerization of P-O-P bonds, which could be shown by constant-time solid-state double-quantum 31P nuclear magnetic resonance experiments. The polyphosphonate COF exhibits good water and water vapor stability during the gas sorption measurements, and electrochemical stability in 0.5 M Na2SO4 electrolyte in water. The reported family of COFs fills a significant gap in the literature by providing stable microporous COFs suitable for use in water and electrolytes. Additionally, we provide a sustainable synthesis route for the COF synthesis. The narrow pores of the COF effectively capture CO2.



中文翻译:


聚膦酸酯共价有机骨架



在此,我们报道了通过 POP 连接构建的聚膦酸酯共价有机框架 (COF)。该材料是通过电荷辅助氢键有机骨架的一步缩合反应合成的,该有机骨架由苯基膦酸和5,10,15,20-四[对苯基膦酸]卟啉构成,并通过简单的方法形成不使用化学试剂加热其氢键前体。在210℃以上,由于POP键的低聚,它变成无定形微孔聚合物结构,这可以通过恒定时间固态双量子31 P核磁共振实验得到证明。聚膦酸酯COF在气体吸附测量过程中表现出良好的水和水蒸气稳定性,并且在水中的0.5 M Na 2 SO 4电解质中表现出良好的电化学稳定性。所报道的 COF 家族通过提供适用于水和电解质的稳定微孔 COF 填补了文献中的重大空白。此外,我们还为 COF 合成提供了可持续的合成路线。 COF的窄孔有效地捕获CO 2

更新日期:2024-09-09
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