The new ligands have been prepared in this work, which contain benzothiazole linked to three different aldehydes throw imine group. these three ligands include:
LI= 2- (Acetlidine ) hydrazine benzothiazole.LII= 2- (O -hedroxy benzylidine) hydrazine benzothiazole. LIII=2-(2,4,6- trimethoxy benzylidine) hydrazine benzothiazole.
Which were reacted with the transition metal iones ( Ni(II) , Co(II) , Cu(II) , Cd(II) ).
The molecular formulae for the new complexes were :LI complexes:[Ni (LI)2 (H2O)2. (NO3)2, [Co (LI)2 (H2O)2] Cl2 [Cu (LI)2 Cl2]. 2C2H5OH and [Cd LI (H2O)2]. (NO3) 2
LII complexes:
[Ni (LII)2 (H2O)2]. 2H2O, [Co (LII)2 (H2O)2] 2H2O
[Cu2 (LII)2 Cl2]. H2O and [Cd LII NO3 H2O] 2H2O
LIII complexes:
[Ni (LIII)2 (NO3) 2]. 2H2O, [Co (LIII)2 Cl2]. 6H2O
[Cu (LIII)2 .(H2O)2] Cl2 and [Cd LIII (H2O)2]. (NO3)2. C2H5OH
All the three prepared ligands and their metal complexes were characterized using the appropriate techniques, i.e. melting point measurement, FTIR , UV-Vis spectroscopy, atomic absorption spectroscopy, magnetic susceptibility and electrical conductivity measurement. According to the data obtaeind, especially those from crystal field calculations, the structural formulae were suggested. All complexes show to have octahedral shapes, except that of Cd (II) complex, which were of tetrahedral geometry and also that of AII Cu which was dimeric square planar.The ligand, show different coordination behavior depending on the donor atoms and the type of the metal ion.
