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Diseño del azobenzeno más allá del simple comportamiento de encendido y apagado
Saber Mehrparvar1, Zoe Nonie Scheller1, Christoph Wölper1
1Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstr. 7, D-45117 Essen, Germany.
Journal of the American Chemical Society
|November 18, 2021
Resumen
Los investigadores desarrollaron un nuevo azobenzeno inteligente con un interruptor redox reversible. Este avance permite el control selectivo sobre el fotointercambio, ofreciendo una alternativa más inteligente para aplicaciones en electrónica digital y materiales avanzados.
Área de la Ciencia:
- Química supramolecular
- Ciencias de los materiales
- Interruptores moleculares
Sus antecedentes:
- Los azobenzenos son unidades de conmutación inducidas por la luz versátiles con amplias aplicaciones.
- Los sistemas de azobenzeno existentes carecen de control selectivo en ensamblajes moleculares complejos.
Objetivo del estudio:
- Introducir un nuevo sistema "inteligente" de azobenzeno con conmutación por fotos con control externo.
- Permitir la conmutación selectiva de las unidades individuales de azobenzeno dentro de un sistema.
Principales métodos:
- Integración de una unidad de conmutación redox con una fracción de azobenzeno.
- Utilizando la modulación de la fuerza de enlace de calcógeno para el control de conmutación.
- Síntesis de un sistema de doble conmutación pequeño y fácil de producir.
Principales resultados:
- Se ha demostrado el control reversible "encendido/apagado" de la conmutación fotográfica del azobenceno mediante un interruptor redox.
- Se ha logrado el cambio selectivo de una unidad de azobenzeno en presencia de otras.
- El sistema desarrollado es simple, pequeño y fácil de sintetizar.
Conclusiones:
- El nuevo sistema de doble conmutación ofrece un control mejorado de la funcionalidad del azobenceno.
- Esta tecnología representa un reemplazo más inteligente para los azobenzos convencionales.
- Las aplicaciones potenciales incluyen el almacenamiento de información de estado, análogo a las chanclas electrónicas digitales.
![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
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