Copper(II), cobalt(III), nickel(II), palladium(II), and zinc(II) complexesof the Schiff base ligands derived from 2,6-diacetylpyridine and phthaldialdehyde

Two new ligands, N,N ' -bis[2-hydroxy-3-methoxy-N- (pyridyl) benzylamine]-2 ,6-di acetylidenepyridine (H2L ') and N, N ' -bis [2-hydroxy-3-methoxy-N-(p yridyl)benzylamine]- 1,2-phthaldialdimine (H2L ") and their Cu(II), Co(III) , Ni(II), Pd(II) and Zn(II) complexes have been prepared and characterized by elemental analyses, IR, electronic spectra, magnetic moments, H-1 and C- 13 NMR spectra, mass spectral and molar conductance data. The mononuclear C o(III) complexes of these ligands have been isolated with two molecules of DMF. While the Co(III) complex of H2L ' is a 1:1 electrolyte, the other com plexes and ligands are non-electrolytes. The ligands H2L ' and H2L " and so me of their complexes show antimicrobial activity against bacteria and yeas t.