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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Autoensamblaje de cilindros moleculares a partir de ligandos de policarbonos y Ag (I) o Au (I)
Arnab Rit1, Tania Pape, F Ekkehardt Hahn
1Institut für Anorganische und Analytische Chemie, Westfalische Wilhelms-Universität Münster, Germany.
Journal of the American Chemical Society
|March 13, 2010
Resumen
Se sintetizaron nuevos complejos de plata ((I) con estructuras polinucleares cilíndricas. Estos complejos de plata se pueden transformar en complejos de oro, preservando el complejo ensamblaje metalosupramolecular.
Área de la Ciencia:
- Coordinación Química de la Coordinación
- Química supramolecular de las moléculas.
- Química organometálica Química orgánica de los metales.
Sus antecedentes:
- Las sales de imidazolio son ligandos versátiles en la química de la coordinación.
- Los complejos metálicos polinucleares ofrecen propiedades estructurales y electrónicas únicas.
- La transmetalización es una reacción clave para sintetizar complejos heterometálicos u homometálicos.
Objetivo del estudio:
- Para sintetizar nuevos complejos cilíndricos polinucleares de plata (I) utilizando sales de tris y tetrakis (imidazolio).
- Para investigar la reactividad de estos complejos de plata (I) en reacciones de transmesación.
- Explorar la retención del ensamblaje metalosupramolecular durante la transmitación.
Principales métodos:
- Reacción de las sales de tris- y tetrakis (imidazolio) con el óxido de plata (Ag2O).
- Caracterización de los complejos de plata (I) resultantes, por ejemplo, [Ag4 (I) (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ] [Ag4 (I) ]
- Reacción de transmetalización de complejos de plata (I) con oro (I) cloruro de dimetilsulfuro ([AuCl (SMe2) ]).
Principales resultados:
- Síntesis exitosa de complejos cilíndricos polinucleares de plata.
- Demostración de la transmitación de complejos de plata (I) con un precursor de oro (I).
- Formación de complejos homonucleares de oro (I) mientras se mantiene el marco metalosupramolecular.
Conclusiones:
- Las sales de Tris y Tetrakis (imidazolio) son precursores efectivos para la construcción de complejos de plata polinucleares (I).
- La arquitectura metalosupramolecular es estable bajo condiciones de transmisión.
- Este trabajo proporciona una vía para sintetizar ensamblajes complejos de oro (I) a través de intermediarios de plata.
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