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Heterodiazocinas: síntesis y propiedades fotocrómicas, conmutación trans a cis dentro de la ventana bio-óptica
Melanie Hammerich1, Christian Schütt1, Cosima Stähler1
1Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel , Otto Hahn Platz 4, 24118 Kiel, Germany.
Journal of the American Chemical Society
|September 30, 2016
Resumen
Los investigadores desarrollaron nuevos azobenzenos puentes (diazocinas) que son más fáciles de sintetizar y cambiar con luz roja lejana. Estos compuestos son prometedores para fármacos y materiales fotointercambiables.
Área de la Ciencia:
- Química orgánica
- La fotoquímica
- Ciencias de los materiales
Sus antecedentes:
- Los azobenzenos puentes (diazocinas) ofrecen propiedades fotofísicas mejoradas que los azobenzenos padres.
- Los métodos de síntesis actuales para las diazocinas producen cantidades bajas y dificultan la preparación de derivados.
Objetivo del estudio:
- Desarrollar nuevos compuestos de diazocina con una mejor accesibilidad sintética.
- Para facilitar la preparación de los derivados de la diazocina.
- Para explorar su potencial en aplicaciones avanzadas.
Principales métodos:
- Síntesis de dos nuevos compuestos de heterodiazocina.
- Caracterización de sus propiedades fotofísicas.
- Evaluación de su comportamiento de conmutación bajo luz visible y roja lejana.
Principales resultados:
- Síntesis exitosa de dos heterodiazocinas con mejor rendimiento.
- Acceso fácil demostrado a los derivados mediante procedimientos generales.
- Confirmado fotointercambio eficiente en la región del rojo lejano (650 nm).
- Exhibieron propiedades fotofísicas superiores, incluidas altas eficiencias de conmutación y rendimientos cuánticos.
Conclusiones:
- Las nuevas heterodiazocinas son más accesibles y más fáciles de derivar que las diazocinas anteriores.
- Sus excelentes propiedades fotofísicas y su capacidad de respuesta a la luz roja lejanas los hacen adecuados para medicamentos y materiales funcionales fotointercambiables.
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