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Visualización cristalográfica de la transformación estructural inducida por hidrocarburos C3 y encapsulación de

Shao-Jie Qin¹, Mohana Shivanna², Mei-Yan Gao²

¹College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology Chengdu 610059 China bqsong@cdut.edu.cn.

Chemical science

|February 18, 2026

Resumen

Los polímeros de coordinación flexibles, SIFSIX-23-Cu, cambian de estados no porosos a porosos desencadenados por hidrocarburos C3. Esto permite la adsorción selectiva de propino de mezclas de gases a través de interacciones huésped-gas.

Área de la Ciencia:

Ciencia de Materiales
Química
Nanotecnología

Sus antecedentes:

Los polímeros de coordinación flexibles ofrecen porosidad sintonizable para la adsorción selectiva de gases.
Los materiales de marco adaptativos son cruciales para las tecnologías de separación avanzadas.

Objetivo del estudio:

Investigar el cambio estructural inducido por hidrocarburos C3 de una red SIFSIX flexible.
Elucidar las interacciones huésped-gas que rigen la adsorción selectiva.

Principales métodos:

Difracción de rayos X de cristal único (SCXRD) para visualizar las transiciones estructurales.
Experimentos de adsorción y ruptura de gases para evaluar la captación selectiva.

Principales resultados:

SIFSIX-23-Cu exhibe un cambio reversible de fases no porosas a porosas al exponerse a hidrocarburos C3.
Las presiones de apertura de la puerta varían para propino, propileno y propano.
Los enlaces de hidrógeno C-H⋯F y la quelación de tamaño coincidente impulsan la adsorción selectiva de propino.

Conclusiones:

Las interacciones huésped-gas son clave para controlar las transiciones estructurales en sorbentes flexibles.
SIFSIX-23-Cu demuestra potencial para la separación selectiva de hidrocarburos C3.

Palabras clave:

polímeros de coordinación materiales adaptativos separación de gases hidrocarburos C3 adsorción selectiva propino SIFSIX-23-Cu interacciones huésped-gas cambio estructural

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