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Hacia un alambre molecular de tipo n: electrones saltando dentro de los oligómeros de perilenediimida unidos
Thea M Wilson1, Michael J Tauber, Michael R Wasielewski
1Department of Chemistry and Argonne-Northwestern Solar Energy Research Center, Northwestern University, Evanston, Illinois 60208-3113, USA.
Journal of the American Chemical Society
|June 11, 2009
Resumen
Los investigadores sintetizaron oligómeros de perilenediimida (PDI) con sistemas pi ortogonales. El salto de electrones entre las moléculas de PDI excedió 10{\displaystyle 10} (7) s{\displaystyle 10}-1), lo que sugiere nuevos diseños para la electrónica orgánica.
Área de la Ciencia:
- Química orgánica es la química orgánica.
- Ciencia de los materiales Ciencia de los materiales.
- Química Física es la química física.
Sus antecedentes:
- Los derivados de perilenodiimida (PDI) son cruciales en la electrónica orgánica.
- El control de la transferencia intramolecular de electrones es clave para el diseño de materiales.
Objetivo del estudio:
- Para sintetizar dímeros y trímeres PDI enlazados linealmente con sistemas pi ortogonales.
- Para investigar la dinámica intramolecular de salto de electrones en estos oligómeros PDI.
Principales métodos:
- Síntesis de dímeros y trímeres de PDI.
- Reducción única de oligómeros y compuestos modelo.
- Espectroscopía por resonancia paramagnética de electrones (EPR). espectroscopia de resonancia paramagnética de electrones (EPR). espectroscopia de resonancia paramagnética de electrones (EPR). espectroscopia de resonancia paramagnética de electrones (EPR). espectroscopia de resonancia paramagnética de electrones (EPR). espectroscopia de resonancia paramagnética de electrones (EPR).
- Espectroscopia de doble resonancia nuclear de electrones (ENDOR). espectroscopia de resonancia nuclear de electrones (ENDOR). espectroscopia de resonancia nuclear de electrones (ENDOR). espectroscopia de resonancia nuclear de electrones (ENDOR). espectroscopia de resonancia nuclear de electrones (ENDOR). espectroscopia de resonancia nuclear de electrones (ENDOR). espectroscopia de resonancia nuclear de electrones (ENDOR). espectroscopia de resonancia nuclear de electrones (ENDOR).
Principales resultados:
- Oligómeros PDI sintetizados con sistemas pi casi ortogonales.
- Se observaron tasas de salto de electrones intramoleculares superiores a 10 7 s 1 cuando las unidades PDI eran electrónicamente equivalentes.
- Demostró un rápido salto de electrones entre unidades PDI orientadas ortogonalmente.
Conclusiones:
- Es factible el salto rápido de electrones en oligómeros PDI con sistemas pi ortogonales.
- Los hallazgos amplían las posibilidades de diseño para materiales electrónicos orgánicos basados en PDI.
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