2017年8月28日 · We demonstrate the utility of this approach by crystallizing a woven covalent organic framework (COF-112), in which covalent organic threads are interlaced to form a three-dimensional woven framework.

2020年9月25日 · Two woven covalent organic framework materials (COF-505 and COF-506) have been synthesized since 2016, and the latter demonstrated the ability to take up dyes and other small molecules. This opens the door to applications …

2016年1月22日 · We report on a general strategy and its implementation for the designed synthesis of a woven material [covalent organic framework-505 (COF-505)]. This COF has helical organic threads interlacing to make a weaving crystal structure with the basic topology of Fig. 1B, and we show that this material has an unusual behavior in elasticity.

2023年10月16日 · We report a new strategy to access 2D woven COFs by controlling the angle of the usually linear linker, resulting in the successful synthesis of a 2D woven pattern based on chain-link fence. The synthesis was accomplished by linking aldehyde-functionalized copper (I) bisphenanthroline complexes with bent 4,4′-oxydianiline building units.

2016年1月26日 · COFs和它们的“表兄弟”——金属有机骨架（metal organic frameworks, MOFs），都是多孔的三维晶体，具有极大的内部表面积，可以吸收和存储大量的目标分子，在碳捕获方面具有很大的应用潜力。 通过Yaghi开发的被称为“网状化学”的另一种技术，催化剂也可以被嵌入这些框架以实现期望的功能，例如，还原二氧化碳使其转化为一氧化碳，用做多种化学品（包括燃料、药品和塑料）的原材料。 在这项最新的研究中，Yaghi和他的合作者使用铜（I） …

2024年9月10日 · Herein, two molecularly woven covalent organic frameworks (COFs) are designed, namely CuCOF and CuCOF +, with copper (I)-bisphenanthroline complexes as building blocks.

2024年3月21日 · Liquid crystalline polymers can thread through covalent organic frameworks (COFs) and create nanofibril bridges that dissipate energy during fracture. Neumann et al. show that a molecularly woven COF stabilized by amide linkages was interpenetrated by polyimide, which was also chemically similar to this COF.

2022年2月3日 · The resulting 3D woven COF, COF-505, has helical strands interlaced at regular intervals in 3D, and the Cu (I) ions serve as points of registry.

Described in this dissertation is the designed synthesis and characterization of a new class of materials – woven crystalline covalent organic frameworks (COFs). Molecular building units are stitched together through strong bonds in a process termed reticular synthesis. In conjunction with metal-templated synthesis woven frameworks are obtained.

2023年9月14日 · In this work, we demonstrate that helically assembled molecules, helicates, composed of multiple mutually embracing complexes, can indeed be used for accessing the planar building units necessary for making 2D woven patterns.