One-pot metal template synthesis, crystal structures and spectroscopic properties of self-assembled rare earth metal ion complexes of salicylaldimine ligands

The self-assembled metal-promoted synthesis of salicylaldimine complexes of rare earth metal ions is described. Two types of Schiff base complexes reveal two different supramolecular architectures: a monomer in [Tm(C11H16N3O)2]NO3·CH3OH complex with formations of a two-dimensional network and a dimer in [M2(C18H19N3O2)2(NO3)2] complexes (M = Y3+, Eu3+or Lu3+). The complexes contain N-(salicylidene)-diethylenetriamine deprotonated ligand with N3O set of donor atoms or N,N′-bis(salicylidene)-diethylenetriamine deprotonated ligand with N3O2 donor system.91