Die Kristallstruktur von Sc(CH3COO)3, ein Metall(III)acetat mit Kettenstruktur / Crystal Structure of Sc(CH3COO)3, a Metal(III) Acetate with a Chain Structure
Open Access
- 1 December 1984
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 39 (12) , 1662-1663
- https://doi.org/10.1515/znb-1984-1206
Abstract
Sc(acO)3 was obtained from Sc2O3 and (CH3CO)2O or from Sc2(CO3)3 and acetic acid. Recrystallization in water yields hexagonal columns of anhydrous Sc(acO)3. It crystallizes in the space group P 63/mcm with the lattice constants a = 791.1(3) pm, c = 886.6(7) pm and z = 2. Sc(acO)3 exhibits a polymeric structure with a linear chain of metal atoms which are connected in each case by three bridging acetato groups. For the Sc atoms results a sixfold coordination in the form of a compressed octahedron with the symmetry D3d and with distances Sc-O = 208.4 pm. The columns of polymeric Sc(acO)3 are arranged like in an ideal hexagonal close packing of cylindrical rods.Keywords
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