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Triethyl-ammonium bis-(2-oxido-2,2-diphenyl-acetato-?O,O)anti-monate(III).


ABSTRACT: The coordination around the Sb atom in the title compound, (C(6)H(16)N)[Sb(C(14)H(10)O(3))(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 carboxyl-ate 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 hydroxy-late atoms occupy the two equatorial sites, and the carboxyl-ate atoms are in the pseudo-axial sites; the O-Sb-O angle is 147.72?(5)°. One carboxyl-ate 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 hydroxy-late 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.

SUBMITTER: Reza MY 

PROVIDER: S-EPMC2979724 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature

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Triethyl-ammonium bis-(2-oxido-2,2-diphenyl-acetato-κO,O)anti-monate(III).

Reza Md Yeamin MY   Hossain Md Motahar MM   Karim Md Rabiul MR   Tarafder Md Tofazzal Hossain MT   Hughes David L DL  

Acta crystallographica. Section E, Structure reports online 20100109 Pt 2


The coordination around the Sb atom in the title compound, (C(6)H(16)N)[Sb(C(14)H(10)O(3))(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 carboxyl-ate 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 hydroxy-late atoms occupy the  ...[more]

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