synthesis, spectroscopy and biological activities studies for new complexes of some lanthanide metals with schiff's bases derived from dimedone with 4-aminoanitpyrine

In this work, new complexes of some lanthanide ions metals, such as (la^+3, nd^+3, er^+3, gd^+3and dy^+3) with schiff bases that derived from the antipyrine compound were synthesized. this ligand can be synthesized from condensation dimedone with 4-aminoanitpyrine in microwave irradiation and were identified using (ft-ir spectroscopy, uv-visible spectroscopy, chno analysis, lc-mass, 1h-nmr, 13c-nmr and tga analysis). the complexes were characterized by ft-ir, uv-visible, chno analysis, conductivity measurement, magnetic susceptibility, and theromgravimatric analysis. from stoichiometry of metal to ligand and all measurements was proposed formula of complexes and a molar ratio (2-2) (metal – ligand) to give the. the bioactivity of the prepared (l) and its complexes were assessed using antibacterial activity, and the results revealed significant activity against some fungi and bacteria.