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Synthesis and structure of triarylantimony dioximates
Sharutin,Molokova,Sharutina,Gerasimenko,Pushilin
, p. 1485 - 1491 (2008/10/09)
The reaction of triphenylantimony, hydrogen peroxide and 5-bromo-2-hydroxybenzaldoxime in a 1:1:2 molar ratio in ether gives triphenylantimony bis(5-bromo-2-hydroxybenzaldoximate). The reaction of penta-p-tolylantimony with the same oxime in toluene yields tri-p-tolylantimony bis(cyclohexanone oximate). According to X-ray data, the Sb atoms in the products have a distorted trigonal bipyramidal coordination with the oximate ligands in axial positions. In triphenylantimony bis(5-bromo-2- hydroxybenzaldoximate), the O-Sb-O angle is 175.49(6)°, and the interatomic distances are as follows, A: Sb-C 2.095-2.103; Sb-O 2.069(2) and 2.083(2); and Sb...N (intermolecular) 2.896(2) and 2.832(2). The respective geometric parameters of tri-p-tolylantimony bis(cyclohexanone oximate) are 174.25(6)°; 2.107-2.117; 2.049(2) and 2.057(2); and 2.890(2) and 2.861(2) A. 2004 MAIK Nauka/Interperiodica .
