Abstract

Tri-p-tolylantimony reacts with p-toluenesulfonic acid in the presence of benzoyl peroxide (1 : 2 : 1 molar ratio) in ether to give tri-p-tolylantimony ditosylate in 91% yield. According to X-ray diffraction data, the central antimony atom has the trigonal bipyramidal coordination with the axial location of the tosyl groups. The Sb-O bond lengths are 2.07(2) and 2.17(2) A; Sb-C bond lengths, 2.08(3), 2.13(3), and 2.13(3) A; and OSbO bond angle, 175.6(7)°.

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