Synthesis and Characterization of Some New Organoantimony(III) Derivatives of N,S Donor Bifunctional Tetradentate Schiff Bases

Reactions of triphenylantimony(III) with the corresponding Schiff bases in equimolar ratios yield the phenylantimony(III) derivatives, PhSb[RC(NC 6 H 4 S)CH 2 (NC 6 H 4 S)CCOOCH 3 ] (R = C 6 H 5 , 4-ClC 6 H 4 , 4-BrC 6 H 4 , and 4-CH 3 C 6 H 4 ). These derivatives have been characterized by elemental analyses, molecular weight measurements, and IR as well as NMR ( 1 H and 13 C) spectral studies which reveal a five coordination around the central antimony atom.