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Síntesis, caracterización y catálisis de la trimización alquina de un complejo heteroleptico de dos coordenadas fe

Michael I Lipschutz¹, Teera Chantarojsiri¹, Yuyang Dong¹

¹Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.

Journal of the American Chemical Society

|May 1, 2015

Resumen

Los investigadores sintetizaron el primer complejo heteroleptico de hierro de dos coordenadas. Este nuevo complejo de hierro exhibe una actividad redox única y muestra potencial para catalizar reacciones de ciclotrimerización de alquino.

Área de la Ciencia:

Química organometálica Química orgánica de los metales.
Coordinación Química de la Coordinación
La catálisis por catálisis.

Sus antecedentes:

Los complejos metálicos de dos coordenadas son raros y su síntesis presenta desafíos únicos.
Los complejos de hierro son de gran interés debido a su abundancia y diversa reactividad.
Comprender la estructura electrónica y las propiedades redox del hierro de baja coordinación es crucial para desarrollar nuevas aplicaciones catalíticas.

Objetivo del estudio:

Informar sobre la síntesis y caracterización del primer complejo heteroleptico de hierro de dos coordenadas.
Para investigar el comportamiento redox del complejo de hierro sintetizado (I) utilizando espectroscopia de Mössbauer.
Explorar la actividad catalítica del complejo de hierro (I) en la ciclotrimerización de alquinos.

Principales métodos:

Síntesis de una sola olla que incluye protonación, adición y reducción de ligandos.
(57) Espectroscopia de Fe Mössbauer para el análisis de la actividad redox.
Reacciones catalíticas que involucran alquinos terminales e internos.

Principales resultados:

Síntesis exitosa del complejo heteroleptico, de dos coordenadas de hierro ((I) complejo IPr-Fe-N ((SiMe3) DIPP (1).
La espectroscopia de Mössbauer confirmó que la reducción es a base de metal.
El complejo de hierro (I) demostró actividad en la ciclotrimerización catalítica de los alquinos.

Conclusiones:

Se ha sintetizado y caracterizado el primer complejo heteroleptico de hierro de dos coordenadas (I).
El complejo exhibe interesantes propiedades redox con reducción a base de metales.
Este nuevo complejo de hierro es prometedor como catalizador para la ciclotrimerización de alquinos.

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