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Preparation of a Corannulene-functionalized Hexahelicene by Copper(I)-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Corannurylene Pentapetalae, también conocido como Corannurylene
Dong Meng1,2, Guogang Liu2,3, Chengyi Xiao4
1Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry , Tsinghua University , Beijing 100084 , China.
Journal of the American Chemical Society
|March 9, 2019
Resumen
Los investigadores sintetizaron un nuevo grafenoide no plano, corannurileno pentapetalae (CRP), utilizando fragmentos de perileno diimida (PDI) y un núcleo de corannuleno. La estructura simétrica D5 muestra potencial para el transporte de electrones a través de su red única de panal.
Área de la Ciencia:
- Ciencias de los materiales
- Química orgánica
- Nanotecnología
Sus antecedentes:
- Existen avances significativos en la síntesis de grafenoides no planos.
- Los desafíos permanecen en la comprensión de las relaciones estructura-propiedad, particularmente las interacciones intermoleculares.
Objetivo del estudio:
- Para presentar un nuevo grafenoide no plano, el corannurylene pentapetalae (CRP).
- Investigar las características estructurales y las interacciones intermoleculares de la CRP.
- Explorar el potencial del CRP en los dispositivos electrónicos.
Principales métodos:
- Síntesis de abajo hacia arriba que incluye fragmentos planos de perilenodiimida (PDI) y un núcleo curvo de corannuleno.
- Difracción de rayos X de cristal único para elucidación estructural.
- Fabricación y ensayo de dispositivos de transistores.
Principales resultados:
- Se identificaron dos estructuras distintas de CRP: D5-simétrica y C2-simétrica.
- El CRP D5-simétrico exhibe una red de nido de abeja quiral única y apilada alternativamente.
- El CRP simétrico C2 forma unidades de dímeros a través del apilamiento π-π.
- Los dispositivos de transistores mostraron que la red de nido de abeja del CRP simétrico D5 facilita el transporte de electrones incluso sin apilamiento π-π.
Conclusiones:
- Corannurylene pentapetalae (CRP) representa una nueva clase de grafenoides no planas.
- La estructura de nido de abeja del CRP D5-simétrico es prometedora para aplicaciones de transporte de electrones.
- Este trabajo avanza en la comprensión de las relaciones estructura-propiedad en grafenoides complejos.
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