We report here new synthesis method of organometallic-aryloxides. In the first step we have obtained barium complex with 2,3-dihydro-2,2-dimethyl-benzofuran-7-ol (ddbfoH) ligand. In the next step barium aryloxide can be easily modified by organometallic species such as MMe₃ (M = Al, Ga, In) and ZnEt₂, giving compounds which general formulas are: [Ba{(µ-ddbfo)₂MMe₂}₂] and [Ba{(µ-ddbfo)₂ZnEt}₂].[1] The crystal structures for these complexes were determined. The advantage of this technique is that the desired stoichiometry may be achieved on the molecular level by selective formation of the binary metallic alkoxide and the resulting molecule subsequently thermolyzed yield oxide product. The thermal behavior of obtained precursors was studied by TGA analysis over a range of 25 - 1100 ^oC under a dinitrogen atmosphere. The TGA plot shows that bimetallic precursors undergo thermal decomposition to appropriate oxide products BaZn₂O₃ and BaM₂O₄ (M = Al, Ga, In), which were determined by powder X-ray diffraction and SEM techniques.

[1] Utko, J.; Szafert, S.; Jerzykiewicz, L.B.; Sobota, P. Inorg. Chem. 2005, 44, 5194

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1. Thermal decomposition of alkoxo-organometallic precursors for metal oxide materials