A STUDY OF THE HYDROLYSIS-CONDENSATION PATHWAYS OF A HETERO BIMETALLIC ALKOXIDE, NI2SB4(OET)(16)

The hydrolysis-condensation pathways of Ni-Sb-ethoxides in different t oluene-ethanol solvents have been studied. The hydrolysis was performe d by slow addition of controlled amounts of water, diluted in toleuene -ethanol solvents. Characterization of the hydrolysis products was per formed with single crystal X-ray determinations, LR-spectroscopy, UV-V is spectroscopy and TGA. In this way, a number of different Ni-Sb-(oxo )-ethoxides have been isolated and characterized. It was thereby shown that the Ni:Sb ratio of the hetero bimetallic oxo-alkoxides varied mu ch depending on the degree of hydrolysis and that the species formed v ary with the solvent used and the speed at which the water is added.