2023年1月20日 · Here, we report the first synthesis of three-dimensional (3D) ordered macroporous single crystals of the imine-linked 3D microporous COFs (COF-300 and COF-303) via a template-assisted modulated strategy.

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 ...

2018年7月10日 · 当把cof-300配体中氨基和醛基互换，可以得到类似的结构cof-303（下图a）。 由于COF-303跟COF-300具有相同拓扑结构、空间群和七重穿插，传统的粉末衍射技术根本无法区分COF-300和COF-303，而基于单晶的SXRD技术就可以。

2024年2月29日 · In this study, we report the fast synthesis of large-sized single-crystal COFs. In the presence of 2,2,2-trifluoroacetic acid (CF 3 COOH) as the catalyst and 2,2,2- trifluoroethylamine (CF 3 CH 2 NH 2) as the modulator, 16 different COFs with crystal sizes ranging from 50 to 150 μm were synthesized in 1 to 2 days (Fig. 1B).

2021年8月25日 · For PSA-based CH 4 /H 2 and CH 4 /N 2 separations and VSA-based C 2 H 6 /CH 4 separation, COF-303 was identified to be the most promising adsorbent. COF-303 has a small pore size (LCD of 8.31 Å) relative to other COFs and low S acc (1821 m 2 /g) leading to high selectivities.

通过CF3COOH/CF3CH2NH2方案，本研究成功实现了COF单晶快速合成，高分辨率X射线衍射揭示了COF结构特性和宿主-客体相互作用。这些结果为COF材料研究提供了重要见解，推动了COF领域的发展，展望未来可深入探索COFs的物理化学性质和相互作用机制。chemsoon

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).

2025年1月7日 · 通过紫外-可见光谱和电子自旋共振（ESR）研究，发现 sc-sp 2c-COF-1 具有增强的 π 共轭，带隙显著减小（~1.72 eV），吸光度红移至 770 nm，远超 COF-303（~2.61 eV，495 nm）。

图中清晰地展示了cof-303通道内bnoh分子的有序排列，以及它们与cof-303框架之间的多种相互作用。 红色和蓝色的虚线分别代表相邻BnOH分子间的氢键和C-H‧‧‧π相互作用距离，这些细节揭示了COF-303与BnOH分子间的紧密结合方式。

Here, we report the first synthesis of three-dimensional (3D) ordered macroporous single crystals of the imine-linked 3D microporous COFs (COF-300 and COF-303) via a template-assisted modulated strategy. In this strategy, COFs crystallized within t