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Las estructuras orgánicas covalentes cristalinas y estables ligadas al benzofuranos de las reacciones de cascada
Yan Su1, Yuejuan Wan1, Hong Xu2
1State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China.
Journal of the American Chemical Society
|July 18, 2020
Resumen
Los investigadores sintetizaron marcos orgánicos covalentes estables y bidimensionales (COF) utilizando reacciones en cascada irreversibles. Estos COF funcionalizados exhiben una excelente estabilidad química y son ideales para aplicaciones de conducción superprotónica.
Área de la Ciencia:
- Ciencias de los materiales
- Química orgánica
- Nanotecnología
Sus antecedentes:
- Las estructuras orgánicas covalentes (COF) son polímeros porosos cristalinos con propiedades sintonizables.
- La síntesis tradicional de COF a menudo se basa en reacciones de condensación reversibles, lo que limita su estabilidad.
- El desarrollo de FOC robustos con nuevas funcionalidades es crucial para las aplicaciones avanzadas.
Objetivo del estudio:
- Para sintetizar nuevas estructuras orgánicas covalentes bidimensionales (2D).
- Explorar el uso de reacciones en cascada irreversibles para la síntesis de COF.
- Investigar la estabilidad química y el potencial de funcionalización de los COF sintetizados para la conducción superprotónica.
Principales métodos:
- Cristalización de COF 2D a partir de bloques de construcción de hidroxibenzol-aldehído y acetonitrilo.
- Utilizando reacciones en cascada irreversibles que incluyen migración de cianuro, cierre de anillo y oxidación.
- Modificación post-sintética de los COF en condiciones difíciles.
Principales resultados:
- Síntesis exitosa de COFs cristalinos 2D con enlaces de benzofuranos sustituidos por ciano.
- Se ha demostrado una alta estabilidad química de los COF en entornos ácidos y básicos debido a la síntesis irreversible.
- Se ha logrado con éxito la modificación post-sintética de los COF para instalar funcionalidades específicas.
- Destacó el potencial de los COF funcionalizados como vehículos eficientes para la conducción superprotónica.
Conclusiones:
- Las reacciones en cascada irreversibles ofrecen una nueva vía para sintetizar COF 2D altamente estables.
- Los COF sintetizados poseen una excelente robustez química y son susceptibles a la funcionalización.
- Estos COF funcionalizados muestran una promesa significativa para aplicaciones en conducción superprotónica.
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