Abstract
The precursor structure and hydrolysis-gelation process of aluminum-sec-butoxide, Al(O-sec-Bu)3, modified with ethylacetoacetate (EAcAc) were investigated using IR, UV and high magnetic field (11.7 T) 27Al NMR spectra. 27Al NMR showed that the reaction of EAcAc with Al(O-sec-Bu)3 led to the formation of six-coordinated structural units and most of the precursors were assumed to be present as linear trimer containing a four- and two six-coordinated Al atoms. It was found that EAcAc formed the strong chelating bonds with Al(O-sec-Bu)3, which were hardly hydrolyzed by the attack of water molecules in the gelation process.
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Tadanaga, K., Iwami, T., Tohge, N. et al. Precursor structure and hydrolysis-gelation process of Al(O-sec-Bu)3 modified with ethylacetoacetate. J Sol-Gel Sci Technol 3, 5–10 (1994). https://doi.org/10.1007/BF00490143
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DOI: https://doi.org/10.1007/BF00490143