Studies on Homo- and Hetero-Dinuclear Derivatives of Antimony(III) Containing Schiff Base Ligands

Abstract

Some new heterodinuclear antimony(III) derivatives of Schiff base having the composition, K(μ -OPr i ) 2 C(R)CHC(O)COOCH 3 ] (1a–1e) have been synthesized by the reactions of KSb(OPr i ) 4 with benzothiazolines, H(R)CHC(O)COOCH 3 in 1:1 molar ratio. Homodinuclear derivatives of antimony(III), Ph 2 Sb(μ -OPr i ) 2 C(R)CHC(O)COOCH 3 ] (2a–2e) have been synthesized by equimolar reaction of Ph 2 Sb(μ -OPr i ) 2 Sb(OPr i ) 2 (Prepared by the reaction of KSb(OPr i ) 4 with Ph 2 SbCl in 1:1 molar ratio) with benzothiazoline ligands in benzene. The reactions proceed with rearrangement of benzthiazoline ring. All the derivatives have been characterized by elemental analysis, molecular weight determinations, as well as conductance measurements and their plausible structure have been proposed on the basis of IR and NMR ( 1 H and 13 C) spectral studies.