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Novel Heteroleptic Heterobimetallic Alkoxide Complexes as Facile Single-Source Precursors for Ta5+ Doped TiO2−SnO2 Nanoparticles

Abstract : The nanometric mixed tin−titanium oxide doped with a M5+ cation was recently shown as a promising thermoelectric material. We report here synthesis of novel molecular precursors for above material using a convenient approach of reacting a metal chloride with a metal alkoxide. Heterometallic complexes with simple addition formula [(EtOH)2(OEt)2Ti(μ-OEt)2SnCl4] (1·EtOH) and [(EtOH)(OEt)3Ta(μ-OEt)2SnCl4] (2) were isolated in quantitative yield, which on recrystallization from isopropanol afforded mixed-alkoxide complexes [(PriOH)2(OPri)2Ti(μ-OEt)2SnCl4] (3) and [(PriOH)(OPri)3Ta(μ-OEt)2SnCl4] (4), respectively, thus indicating the robustness of the heterometallic M(μ-OEt)2Sn core in the solution phase. Facile conversion of these precursors to halide-free spinodal form of Ta5+-doped TiO2−SnO2 as a potential thermoelectric material is reported.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00553169
Contributor : Bibliothèque Umr7633 <>
Submitted on : Thursday, January 6, 2011 - 4:23:35 PM
Last modification on : Thursday, September 24, 2020 - 6:30:07 PM

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Shashank Mishra, Erwann Jeanneau, Marie-Hélène Berger, Jean-François Hochepied, Stéphane Daniele. Novel Heteroleptic Heterobimetallic Alkoxide Complexes as Facile Single-Source Precursors for Ta5+ Doped TiO2−SnO2 Nanoparticles. Inorganic Chemistry, American Chemical Society, 2010, pp.11184-11189. ⟨10.1021/ic102134w⟩. ⟨hal-00553169⟩

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