Complexation studies of N′-[(1E)-1-phenylethylidene]isonicotinohydrazide: An aroylhydrazone Schiff base and lanthanides

The graphic convey the studies of the interactions between the Ln3 + and PHeH through Potentiometric and Spectroscopic methods. On the left, the representative potentiometric titration curves at 303.15 K are shown. On the right, the 3D structure of a PHeH ligand is placed above the absorption spectra of Nd3 + and PHeH at different molar ratios.263