Synthesis and characterization of Fe(III)-piperazine-derived complexes encapsulated in zeolite Y

Abstract

Recebido em 6/4/11; aceito em 22/11/11; publicado na web em 31/1/12Zeolite-encapsulated complexes have been widely applied in hydrocarbon oxidation catalysis. The "ship-in-a-bottle" encapsulation of iron(III) complexes containing piperazine and piperazine-derivative ligands in zeolite-Y is described. The flexible ligand methodology was employed and the efficiency and reproducibility of the procedure was investigated. The catalysts were characterized employing several techniques and the results indicate the presence of coordinated and uncoordinated iron(III) ions inside and outside the zeolitic cage.