Complexes of some lanthanides with the schiff base derived from 2-acetylpyridine and N-benzoylglycine hydrazide

154-157Complexes of La(III), Pr(III), Nd(III), Sm(III), Eu(III), Gd(III), Tb(III) and Dy(III) with the schiff base derived from 2-acetylpyridine and N-benzoylglycine hydrazide have been prepared and characterised on the basis of elemental analyses, molar conductance, magnetic, electronic, infrared, 1H and 13C NMR spectral techniques. The nephelauxetic ratio (β), the bonding parameter (b1/2), Sinha's parameter (δ%) and angular overlap parameter (η) have been calculated from the electronic spectra of Pr(III), Nd(III) and Sm(III) complexes. Infrared and NMR spectra indicate coordination through azomethine nitrogen, pyridine ring nitrogen and the carbonyl oxygen of the hydrazone moiety. An eight coordinated structure has been proposed for the complexes