Liu Yaozu, Chen Pohua, Wang Yujie, Suo Jinquan, Ding Jiehua, Zhu Liangkui, Valtchev Valentin, Yan Yushan, Qiu Shilun, Sun Junliang, Fang Qianrong
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China.
College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing, 100871, China.
Angew Chem Int Ed Engl. 2022 Jun 13;61(24):e202203584. doi: 10.1002/anie.202203584. Epub 2022 Apr 13.
The development of novel zeolite-like materials with large channel windows and high stability is of importance but remains a tremendous challenge. Herein, we report the first example of a 3D covalent organic framework with zeolitic network, namely the zeolitic organic framework (ZOF). By combining two kinds of tetrahedral building blocks with fixed or relatively free bond angles, ZOF-1 with the zeolitic crb net has been successfully synthesized. Its structure was determined by the single-crystal 3D electron diffraction technique. Remarkably, ZOF-1 shows high chemical stability, large pore size (up to 16 Å), and excellent specific surface area (≈2785 m g ), which is superior to its analogues with the same network, including traditional aluminosilicate zeolites and zeolitic imidazole frameworks. This study thus opens a new avenue to construct zeolite-like materials with pure organic frameworks and will promote their potential applications in adsorption and catalysis for macromolecules.
开发具有大通道窗口和高稳定性的新型类沸石材料具有重要意义，但仍然是一项巨大的挑战。在此，我们报道了首个具有沸石网络的三维共价有机框架，即沸石有机框架（ZOF）。通过结合两种具有固定或相对自由键角的四面体构建块，成功合成了具有沸石crb网络的ZOF-1。其结构通过单晶三维电子衍射技术确定。值得注意的是，ZOF-1表现出高化学稳定性、大孔径（高达16 Å）和优异的比表面积（≈2785 m²/g），优于具有相同网络的类似物，包括传统的铝硅酸盐沸石和沸石咪唑框架。因此，本研究为构建具有纯有机框架的类沸石材料开辟了一条新途径，并将促进其在大分子吸附和催化方面的潜在应用。
