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Updated: Jul 26, 2025
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Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
Published on: July 10, 2017
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Construir un marco orgánico covalente 3D a partir de redes hcb 2D a través de la interpenetración inclinada
Yueyuan Xiao1, Yang Ling2, Kuixing Wang1
1College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China.
Journal of the American Chemical Society
|June 20, 2023
Resumen
Los investigadores desarrollaron COF-904, un nuevo marco orgánico covalente 3D (3D COF), utilizando redes 2D interdigitadas. Este avance expande las estrategias para crear estructuras 3D complejas a partir de simples bloques de construcción moleculares.
Área de la Ciencia:
- Ciencias de los materiales
- Química
- Nanotecnología
Sus antecedentes:
- Los marcos orgánicos covalentes tridimensionales (3D COF) ofrecen propiedades únicas debido a los sitios abiertos y el confinamiento de poros.
- La construcción de COF 3D a través de la interdigitación de capas 2D inclinadas presenta desafíos sintéticos significativos.
Objetivo del estudio:
- Informar sobre la primera construcción exitosa de un COF 3D a través de la interdigitación de redes 2D.
- Para demostrar una nueva estrategia para sintetizar marcos 3D complejos.
Principales métodos:
- Se utilizaron reacciones de condensación de imina [3+2] entre el 1,3,5-triformilbenceno y la 2,3,5,6-tetrametil-1,4-fenilendiamina.
- Difracción electrónica 3D empleada para la determinación de la estructura monocristalina del COF-904 resultante.
Principales resultados:
- Con éxito sintetizado COF-904, un COF 3D formado por interdigitación de redes de hcb 2D.
- Se ha determinado la estructura monocristalina completa del COF-904 con alta resolución (0,8 Å).
- Validación de la interdigitación como una estrategia viable para la construcción de cuadros tridimensionales complejos.
Conclusiones:
- Amplió las estrategias sintéticas para lograr COF 3D a través de la interdigitación.
- Mostró el potencial para crear marcos extendidos estructuralmente complejos a partir de precursores moleculares simples.
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