
A Crystalline Imine-Linked 3-D Porous Covalent Organic Framework
2009年3月12日 · A new crystalline porous three-dimensional covalent organic framework, termed COF-300, has been synthesized and structurally characterized. Tetrahedral tetra-(4-anilyl)-methane and linear terephthaldehyde building blocks were condensed to form imine linkages in a material whose X-ray crystal structure shows five independent diamond frameworks.
COF-300 synthesis and colloidal stabilization with substituted …
2023年5月12日 · In this study, colloidal COF-300 crystallites are synthesized with rapid (15 minute–5 day) reaction times producing hydrated COF-300. This material is characterized via pair distribution function analysis to show their long-range ordering and crystallinity.
【3D COF-300】晶态亚胺连接的三维多孔共价有机框架 | 上海楷树 …
COF-300是一种晶态三维多孔共价有机框架材料,展现出在490°C以下的高热稳定性和永久多孔性,比表面积达到1360 m² g⁻¹,适用于气体存储和分离等领域。
Synthesis of stable COF-300 nanofiltration membrane via
2020年12月1日 · The COF-300 layer can provide the high-efficiency transport pathways for water molecules and simultaneously effective rejection for dye molecules, which is 5–10 times remarkably higher than those of most commercially available NF …
Analysis of COF-300 synthesis: probing degradation processes …
2024年7月1日 · Although COF-300 is often used as an example to study the synthesis and structure of (3D) covalent organic frameworks (COFs), knowledge of the underlying synthetic processes is still fragmented. Here, an optimized synthetic procedure based on a combination of linker protection and modulation was applied.
Single-crystal x-ray diffraction structures of covalent organic ...
2018年7月6日 · Here, we developed a general procedure to grow large single crystals of three-dimensional imine-based COFs (COF-300, hydrated form of COF-300, COF-303, LZU-79, and LZU-111). The high quality of the crystals allowed collection of single-crystal x-ray diffraction data of up to 0.83-angstrom resolution, leading to unambiguous solution and precise ...
【3D-COF-300】单晶动态共价有机框架用于适应性客体排列 | 上 …
新型动态三维共价有机框架材料cof-300,通过扩散梯度转亚胺化协议合成,具有原子级别的构象动态性,能够适应不同客体分子,为研究液体的凝聚态结构提供了新途径。
Electrosprayed COF-300/PDMS hybrid membranes with …
Herein, we propose a novel electrospraying strategy to prepare high-performance covalent organic frameworks/polydimethylsiloxane (COF/PDMS) hybrid membranes with unique hierarchical microstructure for efficient bio-alcohol recovery. Organophilic COF-300 was synthesized and applied as porous fillers.
Nature子刊:客体诱导单晶3D-COFs结构转变 - 澎湃新闻
2025年2月7日 · 值得注意的是,COF-300即使在280°C也能保持其单晶结构,并能有效吸收熔融态的多环芳烃。 3、结合PXRD和理论计算研究了构象异构体之间的结构转化动力学。 从高能态到低能态的结构转变是一个快速的、能量上有利的过程,而反向转变是一个由浓度梯度驱动的缓慢过程。 Fig. 1 | The schematic representation of the structural transformation of COF-300 …
Crystallography Open Database: Information card for entry 1571596
Analysis of COF-300 synthesis: probing degradation processes and 3D electron diffraction structure. via cif-deposit CGI script.