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 S CHIFF 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.