Oxidative addition reactions of tri(2-methylphenyl)antimony

Autor:	S. A. Smirnova, O. V. Molokova, O. K. Sharutina, Vladimir V. Sharutin
Rok vydání:	2012
Předmět:	Ligand Materials Science (miscellaneous) Inorganic chemistry chemistry.chemical_element Ether Oxime Medicinal chemistry Oxidative addition Inorganic Chemistry Bond length chemistry.chemical_compound chemistry Antimony Intramolecular force Physical and Theoretical Chemistry Hydrogen peroxide
Zdroj:	Russian Journal of Inorganic Chemistry. 57:1252-1258
ISSN:	1531-8613 0036-0236
Popis:	Bis[μ-oxo-tri(2-methylphenyl)antimony] (I) was synthesized via oxidation of tri(2-methylphenyl)antimony by hydrogen peroxide in ether. In the presence of 2-hydroxy-5-bromobenzaldoxime or furfural oxime, the reaction between these reactants (in a 1: 1: 1 molar ratio, respectively) yields (μ-oxo)bis[2-hydroxy-5-bromobenzaldoximato-tri(2-methylphenyl)antimony] (II) or (μ-oxo)bis[furfural-oximatotri(2-methylphenyl)antimony] (III). The structures of compounds I–III was determined by X-ray diffraction. In the centrosymmetric dimeric complex I, the Sb atom has a distorted trigonal-bipyramidal coordination with oxygen atoms in equatorial and axial positions. In II and III, the axial positions are occupied by the bridge oxygen atom and the oxygen atom of the oxime ligand. Bond length values are as follows: Sb-C 2.137(3)–2.183(3), 2.116(7)–2.131(7), and 2.105(5)–2.126(6)A; Sb-O 1.934(2), 2.077(2), 1.973(4)–2.151(4), and 1.9706(3)–2.112(6) A for I, II, and III, respectively. Intramolecular contacts Sb...N (2.953(8), 3.002(9), and 2.951(8) II and III.
Databáze:	OpenAIRE
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