Synthesis and thermal decomposition of a novel zirconium acetato-propionate cluster: [Zr12]

Autor: Stéphanie Morlens, Dominique Luneau, Zeming Yu, Philippe Odier, Jean-Louis Soubeyroux, Guillaume Pilet, Sarah Petit
Přispěvatelé: Saint-Gobain Recherche (SGR), SAINT-GOBAIN, Northwest Institute for Nonferrous Metal Research (NIN), Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Magnétisme et Supraconductivité (MagSup), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Solid State Sciences
Solid State Sciences, Elsevier, 2011, 13, pp.665-670. ⟨10.1016/j.solidstatesciences.2010.12.041⟩
ISSN: 1293-2558
DOI: 10.1016/j.solidstatesciences.2010.12.041⟩
Popis: International audience; This work reports a novel Zirconium acetato-propionate complex herein called [Zr12] obtained by reaction of zirconium acetylacetonate Zr(acac)4 with propionic acid. The molecular structure has been determined by X-ray diffraction on single crystals and proposed to be [Zr12(m3-O)16(CH3CH2CO2)12(CH3CO2)8(m2- CH3CH2CO2)4]. This cluster involves oxo/hydroxo bonds in the direct surrounding of the metallic center. The decomposition of [Zr12] has been studied by thermal analysis and compared to Zr(acac)4. Its temperature of decomposition is much lower than for acetylacetonate derivative. In consequence, the formation of ZrO2 is easier from [Zr12] than from Zr(acac)4. This phenomenon highlights the influence of the molecular structure on the process of decomposition. The local surrounding of Zr in [Zr12] and in ZrO2 are very close, while it is markedly different in Zr(acac)4.This difference of environment of the metallic ions is at the origin of the huge difference of thermal behavior of both compounds.
Databáze: OpenAIRE