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Updated: Dec 11, 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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Síntesis reticular de estructuras orgánicas de topología covalente
Xing Kang1, Xing Han1, Chen Yuan1
1School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
Journal of the American Chemical Society
|August 26, 2020
Resumen
Este estudio introduce los primeros marcos orgánicos covalentes (COF) con una topología tbo, superando un desafío sintético significativo. Estos nuevos tbo-COF demuestran potencial como fotocatalizadores heterogéneos eficientes para diversas transformaciones químicas.
Área de la Ciencia:
- Ciencias de los materiales
- Química supramolecular
- Química orgánica
Sus antecedentes:
- Los marcos orgánicos metálicos (MOF) con topología tbo son plataformas versátiles, pero sintetizar marcos orgánicos covalentes análogos (COF) es un desafío.
- La química reticular ofrece una estrategia potencial para el diseño de arquitecturas COF complejas.
Objetivo del estudio:
- Demostrar el diseño y la síntesis de marcos orgánicos covalentes (COF) con una topología tbo utilizando química reticular.
- Explorar las aplicaciones fotocatalíticas de estos nuevos tbo-COF.
Principales métodos:
- Principios químicos reticulares utilizados para el diseño de COF dirigido.
- Se emplean bloques de construcción planos específicos: tetramina cuadrada de porfirina y trialdehidos trigonales de trifenilamina de 3 conexiones.
- Sintetizó y caracterizó dos nuevos tbo-COF a través de reacciones de condensación.
Principales resultados:
- Construido con éxito los primeros ejemplos de tbo-COF.
- Los COF resultantes muestran un grupo espacial cúbico Pm3̅ y una estructura de marco abierto no interpenetrada.
- Los tbo-COF sintetizados funcionan como fotocatalizadores heterogéneos eficientes para las reacciones de hidroxilación oxidativa y de desfluoroalquilación reductora.
Conclusiones:
- La síntesis exitosa de tbo-COFs valida la química reticular como una estrategia viable.
- Estos nuevos materiales representan una nueva plataforma para la ingeniería de materiales multifuncionales a través de una mayor funcionalidad.
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