Synthèse, caractérisation et propriétés de nouveaux complexes à base de métaux de transition.

Abstract

This thesis work presents the synthesis, the structural study by spectroscopic methods, X-ray diffraction, magnetic and photoluminescent properties of new transition metal complexes using the two ligands 2-(2-aminophenyl) benzimidazole (2-ampb) and 4- (dimethylamino) pyridine (DMAP). Five mono, di and polynuclear coordination complexes based on copper (II) and cadmium (II) were obtained with 2- (2-aminophenyl) benzimidazole ligand: * ([Cu(C13H11N3)(NO3)2(H2O)2].H2O), (I). * ([Cu(C13H11N3) (Cl)2]2), (II). * ([[Cu(C13H11N3)2(H2O)2]2+, 2Cl-]. H2O), (III). * ([Cd(C13H11N3)2(NO3)2],CH3OH), (IV). * [Cd2(C13H11N3)2(CH3COO)4]n, (V). The study of their magnetic proprieties contributes to a better understanding of the factors responsible for the nature and intensity of magnetic interactions. With the 4-(dimethylamino) pyridine ligand, we have obtained three new mono and polynuclear coordination complexes with cobalt (II) and zinc (II): * ([Co(C7H10N2)2(N3)2]n), (I). * ([(C7H11N2)[CoCl3- (C7H10N2)]), (II). * ([Zn(N3)2(C7H10N2)2]), (III).