Synthesis and characterization of a new thiazole Schiff base 5-bromo-2-hydroxybenzylidene-2-aminobenzothiazole and its complexes with Co(II), Cu(II) and Ni(II)

A new ligand 5-bromo-2-hydroxybenzylidene-2-aminobenzothiazole has been syn thesized from 2-aminobenzothiazole and 5-bromosalicylaldehyde by condensati on in ethanol. Metal complexes of the ligand were prepared from chloride sa lts of Co(II), Cu(II), and Ni(II) in ethanol. Characterization of the ligan d and its complexes were carried out by microanalyses, magnetic susceptibil ity measurements, FT-IR,C-13, H-1 NMR, and UV-Visible spectroscopy. It was suggested that two ligands with two water molecules coordinate to each meta l atom by hydroxy oxygen and imino nitrogen to form high spin distorted oct ahedral complexes with Co(II), Ni(II) and Cu(II).