SYNTHESIS AND STRUCTURAL,SPECTROSCOPIC STUDY OF NOVEL BIDENTATE LIGANDS(1,3,4-THIADIAZOLE DERIVATIVES) AND THEIR COMPLEXES WITH Ni(II), pd(II) and pt(IV) دراسة توليفية وتركيبية مطيافية للأجراف الجديدة (مشتقات 1،3،4-تياديازول) ومركباتها مع Ni (II) و PD (II) و pt (IV)

Abstract

       This work reports the synthesis and characterization of two new ligands

5-(p-phenoxy)-1,3,4-thiadiazole - 2- thioacetic acid(HL) and 5-(p-toluyl)-1,3,4-thiadiazole-2-thioacetic acid(HL^-). Also complexes of two new ligands (HL) and (HL^-) with Ni^(II) , pd^(II) and  pt^(IV) in formulas [Ni(L) ₂].2 H₂O , [Ni(L^-)₂].H₂O ,[pd(L) ₂] , [pd(L^-)₂],[pt(L)₂(H₂O)₂]Cl₂  and  [pt(L^-)₂(H₂O)₂]Cl₂.3H₂O were prepared . All compounds have been characterized by spectroscopic methods [FT-IR,UV-VIS, Atomic absorption], microanalysis(C.H.N) along with conductivity measurements and magnetic susceptibility . From the above data, the proposed molecular structure for Ni^(II)  and pd^(II) complexes are tetrahedral and square planar geometry respectively, while pt^(IV) complexes are forming octahedral geometry.