Syntheses,magnetic and spectral studies on the coordination compounds of the polystyrene-anchored thiazolidin-4-one

The reaction between polystyrene 3-formylsalicylate and thiophene-2-carboxylic acid hydrazide in dmf in the presence of ethyl acetate results in the formation of polystyrene n-(2-carbamoylthienyl)-3′-carboxy- 2′-hydroxybenzylideneimine (i). a benzene suspension of i reacts with mercaptoacetic acid and forms the polystyrene n-(2-carbamoylthienyl)-c- (3′-carboxy-2′-hydroxyphenyl) thiazolidin-4-one,psch 2-lh 2 (ii). a dmf suspension of ii reacts with zn(ii),co(ii),cu(ii),zr(oh)2(iv) and moo 2(vi) ions and forms the corresponding polystyrene-anchored coordination compounds,[psch 2-lzn(dmf)] (iii),[psch2-lco(dmf)3] (iv),[psch 2- lhcu(oac)] (v),[psch 2-lh 2zr(oh) 2 (oac) 2] (vi) and [psch2-lhmoo 2 (acac)] (vii) respectively. the polystyrene-anchored coordination compounds have been characterized on the basis of elemental analyses,spectral (ir,reflectance,esr) studies and magnetic susceptibility measurements. ii acts as a neutral tridentate ons donor ligand in vi,a monobasic bidentate os donor ligand in vii,a monobasic tridentate ons donor ligand in v and a dibasic tridentate ono donor ligand in iii and iv. the acetato groups behave as monodentate ligands in v and vi. a square-planar structure for v,a tetrahedral structure for iii,an octahedral structure for iv and vii and a pentagonal-bipyramidal structure for vi are suggested. © 2012 hindawi publishing corporation.