Spectroscopic characterization of schiff base-copper complexes immobilized in smectite clays

Herein, the immobilization of some Schiff base-copper(II) complexes in smectite clays is described as a strategy for the heterogenization of homogeneous catalysts. The obtained materials were characterized by spectroscopic techniques, mostly UV/Vis, EPR, XANES and luminescence spectroscopy. SWy-2 and synthetic Laponite clays were used for the immobilization of two different complexes that have previously shown catalytic activity in the dismutation of superoxide radicals, and disproportionation of hydrogen peroxide. The obtained results indicated the occurrence of an intriguing intramolecular redox process involving copper and the imine ligand at the surface of the clays. These studies are supported by computational calculations.

Détails bibliographiques

Auteurs principaux:	Dias,Patrícia M., Kinouti,Lilian, Constantino,Vera R. L., Ferreira,Ana M. D. C., Gonçalves,Marcos B., Nascimento,Rafael R. do, Petrilli,Helena M., Caldas,Marília, Frem,Regina C. G.
Format:	Digital revista
Langue:	English
Publié:	Sociedade Brasileira de Química 2010
Accès en ligne:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010001000025
Tags:	Ajouter un tag Pas de tags, Soyez le premier à ajouter un tag!