Complexes of Mn(II), Cu(II) and Cd(II) with Bipyridine Isomers and Lactates

The new mixed-ligand complexes containing bipyridine isomers and lactates with formulae Mn(2,4'-bpy)2(lact)2'2H2O, Cu(2,4'-bpy) 2(lact)2, Cd(2,4'-bpy)2(lact)2 . 2H2O, Cd(4-bpy)(lact)2 . 2H2O (where: 2,4_-bpy = 2,4'-bipyridine, 4-bpy = 4,4 '-bipyridine, lact = CH3 CH(OH)COO-) were obtained. These complexes and metal lactates Mn(lact)2 . 2H2O, Cu(lact)2 . 2H2O and Cd(lact)2źH2O were characterized by elemental analysis, IR, conductivity and magnetic measurements. The thermal behaviour of all compounds was studied by thermal analysis (TG, DTG, DTA) in air. A coupled TG/MS system was used to analyse the principal volatile products of thermolysis and fragmentation processes of Cu(II) compounds in air and argon.