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Síntesis de Fluorocicloparafenilenos mediante Complejos de Pd Macroclíclicos

Ryogo Oneda¹, Hiroya Igarashi¹, Zhe Sheng¹

¹Institute of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.

Chemistry (Weinheim an der Bergstrasse, Germany)

|December 17, 2025

Resumen

Un nuevo método de síntesis de fluorocicloparafenilenos (F-CPP) catalizado por paladio. Estas moléculas tensas exhiben un empaquetamiento y propiedades ópticas únicas, que ofrecen potencial para nanomateriales avanzados y química supramolecular.

Área de la Ciencia:

Química Orgánica
Ciencia de Materiales
Química Supramolecular

Sus antecedentes:

Los fluorocicloparafenilenos (F-CPP) son moléculas tensas, cíclicas y π-conjugadas.
Poseen propiedades electrónicas y supramoleculares únicas relevantes para la ciencia de materiales.

Objetivo del estudio:

Desarrollar un enfoque sintético novedoso para crear F-CPP funcionalizados.
Investigar las propiedades estructurales y ópticas de los F-CPP sintetizados.

Principales métodos:

Síntesis de F-CPP mediante complejos de paladio macroclíclicos con enlaces covalentes Pd-C.
Intercambio de ligandos con Xantphos para facilitar la eliminación reductiva.
Análisis estructural y mediciones ópticas, incluidos cálculos TD-DFT.

Principales resultados:

Se sintetizaron con éxito varios F-CPP que incorporan unidades de tetrafluorofenileno, fenileno o tienileno.
Los F-CPP a base de tienileno exhiben estructuras de empaquetamiento tubular debido al alto contenido de flúor.
Se demostró un comportamiento de absorción y emisión dependiente del tamaño y la estructura.

Conclusiones:

Se ha establecido una nueva estrategia sintética mediada por Pd para F-CPP.
Los F-CPP sintetizados muestran propiedades ópticas sintonizables y características estructurales únicas.
Este enfoque proporciona una plataforma para diseñar CPP funcionalizados para nanomateriales y química supramolecular.

Palabras clave:

fluorocicloparafenilenos complejos de Pd macroclíclicos eliminación reductiva autoensamblaje

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