Physico-chemical studies on the coordination compounds of thiazolidin-4-one

A dry benzene solution of the schiff base,n-(2-hydroxyphenyl)-3′- carboxy-2′-hydroxybenzylideneimine upon reacting with mercaptoacetic acid undergoes cyclization and forms n-(2-hydroxyphenyl)-c-(3′-carboxy- 2′-hydroxyphenyl)thiazolidin-4-one,lh(i). a meoh solution of i reacts with mn ii,cu ii,zn ii,fe iii and mo o 2 vi ions and forms the monomeric coordination compounds,[mn(lh)(meoh) (ii),[cu(lh)(meoh)] (iii),[zn(lh)(meoh)] (iv),[fecl(lh)(meoh) (v),and [moolh)(meoh)](vi). the coordination compounds have been characterized on the basis of elemental analyses,molar conductance,molecular weight,spectral (ir,reflectance,esr) studies,and magnetic susceptibility measurements. i behaves as a dibasic tridentate oos donor ligand in these compounds. the compounds are nonelectrolytes (λ m = 6.2-13.8 mho cm 2 mol -1) in dmf. a square-planar structure for iii; a tetrahedral structure for iv and an octahedral structure for ii,v,and vi are suggested. © 2013 dinesh kumar et al.