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Cristales altamente fosforescentes de complejos abovedados trans-bis (salicylaldiminato) platino (II) complejos
Naruyoshi Komiya1, Minoru Okada, Kanako Fukumoto
1Department of Chemistry, Graduate School of Engineering Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
Journal of the American Chemical Society
|April 12, 2011
Resumen
Los complejos de platino recién sintetizados exhiben una fuerte fosforescencia cristalina. Los investigadores exploraron sus propiedades fotofísicas y el mecanismo detrás de esta potente emisión de estado sólido.
Área de la Ciencia:
- Química Inorgánica La Química Inorgánica es la química inorgánica.
- Ciencia de los materiales Ciencia de los materiales.
- La fotofísica es la fotofísica.
Sus antecedentes:
- Los complejos bis (salicylaldiminato) platino (II) son compuestos de coordinación bien estudiados.
- Las investigaciones anteriores se centraron en modos específicos de coordinación y sus propiedades.
- La comprensión de la emisión en estado sólido es crucial para el desarrollo de nuevos materiales luminiscentes.
Objetivo del estudio:
- Para sintetizar nuevos complejos abovedados trans-bis ((salicylaldiminato) platino ((II)). complejos.
- Para investigar las propiedades fotofísicas de estos complejos en estados líquidos y cristalinos.
- Para dilucidar el mecanismo responsable de la fuerte fosforescencia cristalina.
Principales métodos:
- Síntesis de nuevos complejos de platino (II).
- Análisis espectroscópico (por ejemplo, espectroscopia de luminiscencia).
- Estudios cristalográficos. estudios de la cristalografía.
- Mediciones fotofísicas en solución y estado sólido.
Principales resultados:
- Síntesis exitosa de una nueva clase de complejos abovedados trans-bis ((salicylaldiminato) platino ((II)).
- Observación de una emisión fosforescente sin precedentes en el estado cristalino.
- Caracterización detallada del comportamiento fotofísico dinámico en diferentes estados.
- Se propone una explicación mecanicista para la mejora de la emisión en estado sólido.
Conclusiones:
- Los complejos de platino ((II) recientemente desarrollados muestran una notable luminiscencia en estado sólido.
- Los hallazgos proporcionan información sobre las relaciones estructura-propiedad que rigen la fosforescencia en complejos metálicos.
- Este trabajo abre caminos para el diseño de materiales fosforescentes avanzados para aplicaciones de estado sólido.
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