Synthesis and Characterization of some Transition Metal Complexes of Thiosemicarbazones Derived from 2‐acetylpyrrole and 2‐acetylfuran

Abstract

Copper(II), nickel(II), palladium(II), platinum(II), and silver(I) complexes of 2‐acetylpyrrole thiosemicarbazone (H₂L¹) and copper(II), nickel(II), platinum(II) and zinc(II) complexes of 2‐acetylfuran thiosemicarbazone (HL²) have been prepared and characterized by conductance, electronic, infrared, magnetic and ¹H NMR spectral measurements in addition to elemental and thermogravimetrical analyses. Square‐planar structures are suggested for the H₂L¹ complexes of Cu(II), Ni(II), Pd(II) and Pt(II), whereas octahedral structures proposed for the HL² complexes of Cu(II) and Ni(II); the Zn(II) and Ag(I) complexes are tetrahedral. Moreover, the results showed that the ligand H₂L¹ is bidentate in all of its complexes, and the ligand HL² is either mono‐, di‐ or tridentate.

Keywords:

• Z–acetylpyrrole
• Z–acetylfuran
• thiosemicarbazones
• transition metal complexes