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Las transformaciones supramoleculares reversibles desencadenadas por la luz de los hexágonos de multi-bistienileteno

Shangjun Chen¹, Li-Jun Chen, Hai-Bo Yang

¹Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, PR China.

Journal of the American Chemical Society

|August 14, 2012

Resumen

Los investigadores crearon nuevos hexágonos fotocrómicos utilizando el autoensamblaje. Estas estructuras supramoleculares controlan con precisión la forma, el tamaño y las unidades fotocrómicas, permitiendo transformaciones reversibles desencadenadas por la luz.

Área de la Ciencia:

Química supramolecular de las moléculas.
Ciencia de los materiales Ciencia de los materiales.
La fotoquímica es la fotoquímica.

Sus antecedentes:

Es difícil controlar las transformaciones estructurales en las supramoleculas artificiales.
El desarrollo de sistemas supramoleculares receptivos y diseñados con precisión es un desafío clave.

Objetivo del estudio:

Para construir una nueva familia de hexágonos de multi-bistienileteno.
Para lograr un control preciso sobre la forma, el tamaño y el número de unidades fotocrómicas.
Desarrollar sistemas supramoleculares con propiedades sensibles a la luz.

Principales métodos:

Se empleó el autoensamblaje impulsado por la coordinación.
Síntesis de los bloques de construcción de multi-bistienileteno.
Caracterización de los hexágonos supramoleculares resultantes.

Principales resultados:

Se construyó con éxito una nueva familia de hexágonos multi-bistienileteno.
Se logró un control preciso sobre la forma hexagonal, el tamaño y la incorporación de la unidad fotocrómica.
Los hexágonos demostraron una alta sensibilidad y capacidad de respuesta a los fotoestímulos.

Conclusiones:

Los hexágonos de multi-bistienileteno desarrollados ofrecen un control preciso de la estructura supramolecular.
Estos sistemas permiten transformaciones cuantitativas y reversibles desencadenadas por la irradiación de luz.
Este trabajo avanza en el diseño de materiales supramoleculares artificiales sensibles a la luz.

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