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Inne
Synthesis and characterization of mixed-metal aryloxo-organometallic precursors for oxide-ceramic materials.
Autorzy
Rok wydania
2008
Czasopismo
Numer woluminu
20
Strony
4231-4239
DOI
10.1021/cm702262n
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Potential single-source molecular precursors [Ba{(µ-ddbfo)2MRx}2] (ddbfoH = 2,3-dihydro-2,2-dimethylbenzofuran-7-ol; M/R/x = Al/Me/2, Al/Et/2, Ga/Me/2, or Zn/Et/1) for mixed metal oxide materials were prepared by the reaction of barium aryloxide [Ba(ddbfo)2(ddbfoH)2]·3ddbfoH with an appropriate organometallic compound in toluene. The precursors were characterized by elemental analysis, IR and NMR spectroscopy, and single-crystal X-ray structural analysis. The Ba/Al2 and Ba/Ga2 complexes undergo thermal decomposition to give mixed metal oxides BaM2O4 (M = Al, at 1300 °C for both Me and Et derivatives; Ga, at 1430 °C). Instead, the Ba/Zn2 complex decomposes to a mixture of BaCO3 and different metal oxides. The chemical composition and surface morphology of heterobimetallic oxides were analyzed by SEM-EDS and X-ray powder diffraction (XRD) that revealed the formation of highly pure oxide materials with micrometer particle sizes.
Słowa kluczowe
Barium, Oxides, Metals, Ligands, Precursors
Adres publiczny
https://doi.org/10.1021/cm702262n
Strona internetowa wydawcy
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