III International Conference

PP-I-21particle size distribution obtained by method SAXRS. The molecular ratio of the complexeswas calculated from these data. These data agree with the data of similar distribution obtainedaccording to NMR (fig. 2).Pr PrPr O HO OAlH O OO HPrPrPrAHPrOPrOPrHOPrAlOHHOOHВH PrOAlOPr HOPrOPrHFig. 1. A structure of complexes of aluminium triisopropylate in isopropanole.A -octacoordinated; B - dimer of an octahedron; C - pentacoordinated; D - tetracoordinated.solution of isopropilate Al(The content of different complexes of aluminium70solution of isopropilate Al(The content of different complexes of aluminium60molar ratio , %7060504030201003 4 5 6r, Amolar ratio, %50403020100A B D CFig. 2. The content of complexes of aluminium triisopropylate in isopropanole (A - on dataSAXRS; B - according to NMR).Thus, it was shown, that there is a set of complexes with a tetrahedral, octahedralcoordination of aluminium in alcocholic solutions of aluminium alcoholates (R = OMe, OEt,OPr i ), and also complexes with pentacoordinated aluminium. Authors hope, that theinformation received in this research, will be useful in the studying of processes of hydrolysisof alcoholate aluminium with the purpose of obtaining of especially pure aluminas forcatalytic processes.47