Mar 12, 2009 · 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.

May 12, 2023 · 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.

Jul 6, 2018 · Single crystals of COFs amenable to x-ray diffraction characterization have not been reported. Here, we developed a general procedure to grow large single crystals of three-dimensional imine-based COFs (COF-300, hydrated form …

Jul 1, 2024 · Detailed analysis of the influence of time and temperature on the synthesis of COF-300 showed partial linker degradation but still allowed 3D electron diffraction structure solution using optimized conditions.

May 21, 2018 · We report herein the first example of interpenetration isomerism in covalent organic frameworks (COFs). As a well-known three-dimensional (3D) COF, COF-300 was synthesized and characterized by the Yaghi group in 2009 as a 5-fold interpenetrated diamond structure (dia-c5 topology).

Dec 1, 2020 · The tubular COF-300 membrane shows a superior flux and highly promising rejection simultaneously, effectively breaking the trade-off effect, which is 5–10 times higher than those of state-of-the-art nanofiltration membranes with similar rejection (in most reports < …

Dec 28, 2023 · Here, we report a general synthetic protocol for making 3D MTV-COFs by balancing the linker reactivity and solvent polarity. Specifically, 15 crystalline and phase pure MTV-COF-300 isostructures are constructed by linking a tetrahedral unit with eight ditopic struts carrying various functional groups.

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.

Abstract: 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 ...

Analysis of COF-300 synthesis: probing degradation processes and 3D electron diffraction structure. via cif-deposit CGI script.