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The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
[Cr(N) Cl4]2-: un complejo de nitrido simple sintetizado por transferencia de átomo de nitrógeno-átomo de nitrógeno
1Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100, Denmark. bendix@kiku.dk
Journal of the American Chemical Society
|October 30, 2003
Resumen
Los investigadores desarrollaron un nuevo método para sintetizar complejos de cromo (V) nitrido. Este enfoque produjo el complejo de nitruro de metal de transición de primera fila más simple, [Cr(N) Cl4]2-, ofreciendo información sobre su estructura electrónica y estabilidad.
Área de la Ciencia:
- Química Inorgánica La química inorgánica es la química inorgánica.
- Coordinación Química de la Coordinación
- Química de los metales de transición química de los metales de transición
Sus antecedentes:
- Los complejos de nitrido de cromo son importantes en la química inorgánica.
- Las rutas de síntesis anteriores para tales complejos eran limitadas.
Objetivo del estudio:
- Presentar una nueva ruta general para la síntesis de complejos de cromo (V) nitrido.
- Para sintetizar y caracterizar el más simple de la primera fila de la transición de metal nitrido complejo.
Principales métodos:
- Transferencia de átomos de nitrógeno de Mn (N) (sal) a CrCl (THF) 3.
- Aislamiento y análisis cristalográfico del producto, [Cr(N) Cl4]2-.
- Análisis espectroscópico para determinar la estructura electrónica.
Principales resultados:
- Sintetizó con éxito el complejo de nitruro de metal de transición de primera fila más simple, [Cr(N) Cl4]2-.
- Se determinó la estructura cristalina, incluidas las longitudes de enlace (Cr-N: 1.555(19) Å) y los ángulos.
- Se caracteriza por un esquema de división orbital extrema con un orbital dx2-y2 significativamente reducido.
- Preservación observada de la fracción {CrN}2+ durante la hidrólisis.
Conclusiones:
- El nuevo método de transferencia de átomos de nitrógeno es eficaz para sintetizar complejos de nitruro de cromo.
- La estructura electrónica de [Cr(N) Cl4]2- es única debido a las importantes interacciones de enlace pi.
- El núcleo {CrN}2+ exhibe una notable estabilidad hacia la hidrólisis.
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