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Updated: Aug 15, 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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El enlace de hidrógeno regula la flexibilidad y el desorden en los marcos orgánicos covalentes vinculados a la
Yang Li1, Jianfei Sui1, Lin-Song Cui1
1School of Chemistry and Materials Science, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
Journal of the American Chemical Society
|January 4, 2023
Resumen
Los enlaces de hidrógeno no covalentes influyen significativamente en la estructura y las propiedades de los marcos orgánicos covalentes (COF). Este estudio demuestra su papel en la cristalinidad de COF, la flexibilidad y las interacciones huésped-huésped.
Área de la Ciencia:
- Ciencias de los materiales
- Química supramolecular
- Química
Sus antecedentes:
- La investigación del marco orgánico covalente (COF) ha avanzado rápidamente, centrándose en nuevos vínculos, estructuras, síntesis y aplicaciones.
- Las interacciones no covalentes, aunque frecuentes en los COF, han sido poco estudiadas en cuanto a su impacto en la estructura y propiedades de los COF.
Objetivo del estudio:
- Investigar el papel crítico de los enlaces de hidrógeno no covalentes en la determinación de las características estructurales y propiedades de los COF ligados a la hidrazona.
- Demostrar la adaptabilidad de las propiedades de los COF mediante la incorporación estratégica de las interacciones no covalentes.
Principales métodos:
- Construcción de COF ligados a la hidrazona que incorporan enlaces de hidrógeno no covalentes específicos.
- Caracterización de las estructuras de COF y la cristalinidad influenciadas por el enlace de hidrógeno.
- Investigación de la flexibilidad estructural y de las interacciones huésped-invitado en los COF sintetizados.
Principales resultados:
- Se demostró que las interacciones de enlace de hidrógeno son críticas para la cristalinidad y la estructura general de los COF.
- Se han demostrado transiciones reversibles entre estados ordenados y desordenados dentro de los FOC.
- Reveló diversas interacciones huésped-huésped reguladas por enlaces de hidrógeno.
Conclusiones:
- Las interacciones no covalentes, particularmente los enlaces de hidrógeno, ofrecen una poderosa estrategia para regular la estructura, la flexibilidad y la funcionalidad de los COF.
- Los hallazgos proporcionan una base para el diseño de COF avanzados mediante la manipulación de interacciones no covalentes.
- Este enfoque es potencialmente extensible a otras interacciones no covalentes para una ingeniería más amplia de COF.
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