Abstract
We report a facile route to multicomponent complexes of [M{(μ-ddbfo)2Al(OSiR3)2}2] (M = Ba, Sr; ddbfoH = 2,3-dihydro-2,2-dimethylbenzofuran-7-ol; R = Ph, OtBu) as new efficient single-source routes to barium and strontium celsian feldspar Ba(Sr)Al2Si2O8. The resulting complexes were characterized by elemental analysis, IR and NMR spectroscopy, and single-crystal X-ray diffraction. These compounds calcined at 1100 °C to give porous material Ba(Sr)Al2Si2O8·2SiO2 as an amorphous silica matrix containing spherical oxide nanocrystals of celsian feldspar of ca. 5 nm diameter, as evidenced by transmission and scanning electron microscopies.
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