Synthèses, caractérisation et étude des propriétés physiques de Complexes de coordination à base de dérivés dithiocarbazates

Abstract

The work described in this manuscript is part of the general problem of exploration possibilities to control synthesis and physical properties of coordination complexes based on transition metals and the 2-hydroxy-1,3-dithiolan-2-ylidenehydrazide benzoic acid (H2L). This manuscript summarizes synthesis and determination of some coordination complexes obtained with H2L ligand and some transition metals like MnII, CdII et ZnII. A series of manganese (II) complexes was prepared, which two, have the formulas [Mn2( µ- Cl)2(Cl)2(H2O)2(HL)2] et [Mn(HL)2(Py)2]1,5. Py. MeCN. These complexes have been characterized by IR spectroscopy, elemental analysis, and single crystal X-ray diffraction. Magnetic properties of bBinuclear complex have been investigated. Another series of three complexes based on CdII have been subject to structural and fluorescent studies: monomeric [Cd(HL)2(MeOH)2], trimeric [MeOH2][Cd2Na(HL)6] and polymeric {Cd(HL)2} n. Structural ant fluorescent characterisation of two monomeric [Zn(H2L)2(Cl)2(MeOH)2 ; [Zn(H2L)2(H2O)2](ClO4)2 and polymeric {Zn(HL)2} n complexes have been described lastly