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The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
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Acceso sintético a un compuesto trifluorado soluble en hidrocarburos Ge (II) y su congenero Sn (II)
Prinson P Samuel1, Yan Li, Herbert W Roesky
1Institut für Anorganische Chemie, Georg-August-Universität , Tammannstrasse 4, D-37077, Göttingen, Germany.
Journal of the American Chemical Society
|January 18, 2014
Resumen
Los investigadores sintetizaron nuevos aniones trifluorados de germanio y estaño, [MF3], mediante fluoración controlada. Estas especies aniónicas estables, estabilizadas por enlaces de hidrógeno, se caracterizaron utilizando técnicas analíticas avanzadas.
Área de la Ciencia:
- Química Inorgánica La Química Inorgánica es la química inorgánica.
- Química organometálica Química orgánica de los metales.
- Química del flúor Química del flúor
Sus antecedentes:
- Los aniones trifluorados de germanio se predijeron teóricamente a fines de la década de 1990.
- La síntesis experimental de estas especies se mantuvo esquiva, a pesar de la evidencia de espectrometría de masas de GeF4.
Objetivo del estudio:
- Para sintetizar y caracterizar el germanio trifluorado estable y los aniones de estaño.
- Investigar el papel de la fluoración controlada en la estabilización de estas nuevas especies.
Principales métodos:
- Fluoración controlada de LMNMe2 (L = PhC(N(t) Bu) 2, M = Ge, Sn) utilizando HF·piridina en el tolueno.
- Caracterización mediante análisis estructural de rayos X de cristal único, espectroscopia de RMN y análisis elemental.
Principales resultados:
- Síntesis exitosa de aniones trifluorados de germanio y estaño, [MF3](-), estabilizados por enlaces H···F interiónicos.
- Formación de compuestos [LH2](+) [MF3](-) mediante fluoración controlada, con eliminación de HNMe2.2.
- Confirmación estructural y espectroscópica de la nueva especie aniónica.
Conclusiones:
- El estudio informa de la primera síntesis experimental de aniones trifluorados de germanio y estaño.
- Los enlaces de hidrógeno interiónicos juegan un papel crucial en la estabilización de estas nuevas especies aniónicas.
- La fluoración controlada ofrece una vía viable para acceder a los aniones organometálicos anteriormente inaccesibles.
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