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Una primera serie de transición de anión de oxinitruro pseudotetraédrico: síntesis y caracterización de Ba(2)VO(3)N

Simon J Clarke¹, Paul R Chalker, Jasper Holman

¹Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K. simon.clarke@chem.ox.ac.uk

Journal of the American Chemical Society

|March 28, 2002

Resumen

Los investigadores sintetizaron un nuevo compuesto de vanadio ((V), Ba ((2) VO ((3) N, mediante amonólisis. Este nuevo material presenta los primeros aniones vanadio-oxígeno-nitrógeno pseudotetraédricos observados en la primera serie de transición.

Área de la Ciencia:

Ciencia de los materiales Ciencia de los materiales.
Química Inorgánica La Química Inorgánica es la química inorgánica.
Química del estado sólido.

Sus antecedentes:

Los compuestos de vanadio-oxígeno-nitrógeno son de interés debido a sus propiedades electrónicas y catalíticas únicas.
La síntesis de nuevos oxinitruros de metales de transición presenta desafíos en el control de las estructuras aniónicas.

Objetivo del estudio:

Para sintetizar y caracterizar una nueva fase de vanadio (V) oxinitruro.
Para investigar la estructura aniónica del compuesto sintetizado.

Principales métodos:

Ammonólisis de los precursores reactivos de los óxidos.
Difracción de rayos X en polvo.
La difracción del polvo de neutrones.
Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman Espectroscopia de Raman

Principales resultados:

Síntesis exitosa de la fase de vanadio (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase Ba (V) en la fase N.
La determinación estructural reveló la presencia de aniones VO(3) N(4-) pseudotetraédricos.
Esto representa la primera instancia de tales especies aniónicas para metales de transición de primera fila.

Conclusiones:

La vía de la amonólisis es eficaz para crear nuevos materiales de oxinitruro de vanadio.
El descubrimiento de los aniones VO(3) N(4-) pseudotetraédricos amplía la química estructural conocida de los oxinitruros de metales de transición.

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