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Caracterización estructural de un complejo de nitrosilo de cobre con una configuración {CuNO}10
Ashley M Wright1, Guang Wu, Trevor W Hayton
1Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA.
Journal of the American Chemical Society
|October 1, 2010
Resumen
Los investigadores sintetizaron un nuevo complejo de cobre-nitrosilo, [Cu (((CH (((3) NO (((2)) (((5))) [PF (((6))) ]), que transfiere fácilmente el ion nitrosonio (NO (((+)) al mesitileno.
Área de la Ciencia:
- Química Inorgánica La Química Inorgánica es la química inorgánica.
- Química organometálica Química orgánica de los metales.
Sus antecedentes:
- Los complejos de cobre con ligandos de nitrosilo son de interés debido a sus propiedades electrónicas únicas.
- Los complejos de nitrosilo pueden servir como fuentes del ion nitrosonio (NO(+)).
Objetivo del estudio:
- Para sintetizar y caracterizar un nuevo complejo de cobre-nitrosilo.
- Investigar la reactividad del complejo sintetizado, particularmente su capacidad para transferir el ion nitrosonio.
Principales métodos:
- Síntesis del complejo de cobre-nitrosilo [Cu(CH(3)NO(2))(5)(NO)][PF(6)](2) a través de la reacción del polvo de metal de cobre con el nitrometano y [NO][PF(6) ].
- Caracterización del complejo en estado sólido, incluyendo cristalografía de rayos X para determinar la geometría molecular.
- Reacción del complejo con el mesitileno para estudiar su reactividad química.
Principales resultados:
- Se sintetizó y caracterizó con éxito el nuevo complejo de cobre-nitrosilo [Cu (((CH (((3) NO (((2)) (((5))) [PF ((6)) ] ((2).
- El análisis del estado sólido reveló una fracción doblada de Cu-N-O (121.0(3) °) y un enlace Cu-N largo.
- El complejo reaccionó fácilmente con el mesitileno, facilitando la transferencia del ion nitrosonio (NO ((+)) al anillo de mesitileno, formando [mesitileno, NO][PF ((6) ] y un complejo bis ((mesitileno) cobre ((I)).
Conclusiones:
- El complejo de cobre-nitrosilo sintetizado es un precursor viable para la transferencia del ion nitrosonio.
- La reacción con el mesitileno demuestra una nueva vía para la funcionalización de los anillos aromáticos con un grupo nitrosil.
- Este estudio amplía la reactividad conocida de los complejos de cobre-nitrosilo.
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