Tri­ethyl­ammonium bis­­(2-oxido-2,2-di­phenyl­acetato-κ2O1,O2)anti­monate(III)

Reza, Md. Yeamin, Hossain, Md. Motahar, Karim, Md. Rabiul, Tarafder, Md. Tofazzal Hossain and Hughes, David L. (2010) Tri­ethyl­ammonium bis­­(2-oxido-2,2-di­phenyl­acetato-κ2O1,O2)anti­monate(III). Acta Crystallographica Section E: Structure Reports Online, 66 (2). m116-m117. ISSN 1600-5368

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The coordination around the Sb atom in the title compound, (C6H16N)[Sb(C14H10O3)2], is fourfold in a pseudo-trigonal-bipyramidal pattern in which one of the equatorial sites is occupied by the stereoactive lone pair of electrons. The four ligating atoms comprise the hydoxylate and carboxyl­ate O atoms from two independent benzilate ligands, each of which forms a five-membered chelating ring, spanning an axial and an equatorial site about the Sb atom. The hydroxy­late atoms occupy the two equatorial sites, and the carboxyl­ate atoms are in the pseudo-axial sites; the O-Sb-O angle is 147.72 (5)°. One carboxyl­ate group shows quite different bond lengths from those of the other group; one O atom is clearly the carbonyl atom and the other O atom the hydroxy­late atom. In the other ligand, there is less distinction in the C-O bonds. This is presumably related to the carbonyl O atom being the acceptor atom of a strong N-H...O hydrogen bond, which links the ammonium cation to the Sb complex anion.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Pure Connector
Date Deposited: 11 Jan 2016 16:01
Last Modified: 22 Dec 2022 17:35
DOI: 10.1107/S1600536809054853

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