SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL-ACTIVITY OF CO(II), NI(II)AND CU(II) CHELATES OF SOME 3-AMINO-BENZOTHIOPHENES

Complexes of Co(ll), Ni(ll) and Cu(ll) with benzothiophene derivatives have been isolated. The structure of the complexes has been recognize d on the basis of elemental and thermal analyses, electronic and I.R. spectral data as well as molar conductance measurements. The complexes were found to have 1:1 or 1:2 (M:ligand) ratio and the coordination t akes place through the amino and carbonyl groups. Tetrahedral or squar e planar stereochemical configuration is suggested for the complexes. It is identified that the complexes possess enhanced antibacterial and antifungal activities relative to their parent ligands.