三甲基功能化二维共价有机框架,用于高分辨率分离异构体
Tian-Tian Ma1,2,3, Cheng Yang3, Hai-Long Qian1,2,3
1State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
ACS applied materials & interfaces
|June 27, 2023
概括
研究人员开发了一种新的三甲基功能化共价有机框架 (COF),用于高效的同位素分离. 这种新型材料,TpTFMB,利用独特的相互作用来实现高分辨率分离具有挑战性的异构体.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 有机化学 有机化学
背景情况:
- 由于异构体的功能不同,异构体的分离在环境,化学和生命科学中至关重要.
- 同类异构体的相似物理化学性质带来了重要的分离挑战.
研究的目的:
- 开发一种新型的功能材料,用于有效的同位素分离.
- 制造一种三甲基功能化的二维共价有机框架 (COF),用于高分辨率的同位素分离.
主要方法:
- 使用 2,2'-bis(trifluoromethyl) -benzidine (TFMB) 和 1,3,5-triformylphloroglucinol (Tp) 来制造三甲基功能化的2D COF (TpTFMB).
- 在毛细血管柱的内部表面TpTFMB的局部生长.
- 利用键,双极相互作用和硬质效应进行分离.
主要成果:
- 准备好的TPTFMB毛细管柱实现了各种异构体的基线分离.
- 分离的位置异构体 (乙/烯,二),碳链异构体 (乙/乙二酸盐) 和 cis-trans 同构体 (1,3-二二).
- 证明了COF中氧基和三甲基功能组的有效性,用于分离.
结论:
- 功能化的2D COF,TpTFMB,为高效的同位素分离提供了一个强大的策略.
- 结合,双极,π-π相互作用和COF结构是成功分离异构体的关键.
- 这项工作提出了一种新的方法,用于设计用于异构体分离应用的先进COF.
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