Synthesis and Characterization of N3P3(O2C12H8)2(OC6H4Si(CH3)3)(OC6H4Br) and Its Conversion to Nanostructured Si Material |
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| Authors: | Carlos Díaz Maria Luisa Valenzuela and Svetlana Ushak |
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| Institution: | (1) Department of Chemistry, Faculty of Science, Universidad de Chile, Casilla 653, Santiago, Chile;(2) Departamento de Química Orgánica e Inorgánica. Facultad de Química, Universidad de Oviedo, C/Julián Clavería S/N, Oviedo, 33071, Spain |
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| Abstract: | A new silicated cyclotriphosphazene N3P3(O2C12H8)2(OC6H4Si(CH3)3)(OC6H4Br) 1 has been synthesized and characterized. The solid state pyrolysis of 1 in air gives a nanostructured SiP2O7 3D network. The morphology of the network strongly depends on the temperature of the pyrolysis. Spinal-like columns and ring-shaped
SiP2O7 are formed at 800 °C, while, at 600 °C, fused grains of about 300 nm were observed. Based on air TG and DSC thermal studies,
we propose the mechanism of formation for the nanostructured network. |
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| Keywords: | Organometallic derivatives of phosphazenes Silicon nanostructures Pyrolysis Nanomaterials |
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