Lanthanide Compounds with S CHIFF Bases and with Copper(II) S CHIFF Base Complexes as Ligands

Lanthanide adducts with N,N′‐bis(salicylidene)‐1,3‐propylendiamine and N,N′‐bis(salicylidene)‐1,3‐propylendiamine‐2‐olo have been prepared. It is noted that the molecules, and not anions, of the SCHIFF bases are coordinated with the metal ion. Bi‐ and trinuclear lanthanide complexes with the “complex ligand”, N,N′‐1,3‐propylen‐bis‐(salicylideniminato)copper(II), coordinating as a bidentate ligand, have also been isolated. The compounds have been characterized by elemental analyses, molar conductance, electronic and infrared spectra. Possible structures for the complexes have been proposed.