STRUCTURE OF ALUMINUM(III) DIPIVALOYLMETHANATE AlO6C33H57
P. A. Stabnikov1, A. I. Smolentsev2, N. V. Pervukhina3, O. S. Koshcheeva4, L. N. Komissarova5, S. V. Borisov6
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Keywords: aluminum dipivaloylmethanate, crystal structure, packings of metal tris- dipivaloylmethanates
Pages: 122-128
Abstract
The structure of aluminum(III) tris-dipivaloylmethanate (Bruker Nonius X8 Apex diffractometer with a 4K CCD detector, λMoKα, graphite monochromator, T = 150(2) K) is determined, and the synthetic procedure for its preparation is suggested. Crystal data are: C2/c space group, a = 28.1587(12) Å, b = 18.5170(7) Å, c = 21.5332(8) Å, β = 97.573(1)°, V = 11129.8(8) Å3, Z = 12, dx = 1.033 g/cm3, R = 6.93. The complex has a molecular structure; the aluminum atom is octahedrally surrounded by six oxygen atoms of three chelating ligands; Al-O distances are 1.860(2)-1.873(2) Å; O-Al-O angles fall within 88.08(9)-91.96(10)° and 177.93(9)-179.83(14)°. The known crystal packings of metal tris-dipivaloylmethanates are analyzed. Three types of the arrangement of the molecules in the crystals denoted as α, β, and γ are identified.
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