Synthèse, étude structurale et propriétés physiques des complexes à base de ligands soufrés et métaux de transition

Abstract

This thesis work presents the synthesis and structural determination by single crystal X-ray diffraction of mono and polynuclear coordination compounds of transition elements from the first period 3dn divalent, copper and manganese. The structural studies and physicochemical of these compounds were realized using several techniques: infrared spectroscopy, X-ray diffraction, thermal analysis and magnetic properties of obtained complexes. The synthesis and study of the structural and magnetic properties of new series of mon-, di, and polymeric compounds resulting from the association of 2-thiopheneacetic acid ligand with the neutral co-ligand, imidazole and benzimidazole, in the presence of the copper (II) ion, is the topic of the second part. The study of their magnetic proprieties contributes to a better understanding of the factors responsible for the nature and intensity of magnetic interactions. Two other mono and polymeric complexes obtained, they are considered as the first compounds resulting from the combination of the 2-thiophene acetic acid ligand with the manganese (II) cation. In the last part, we describe the preparation of two new compounds based on benzothiazole and aminothiophenol.