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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

SPECTROSCOPIC CHARACTERIZATION OF SCHIFF BASE-COPPER COMPLEXES IMMOBILIZED IN SMECTITE CLAYS

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Author(s):
Dias, Patricia M. [1] ; Kinouti, Lilian [1] ; Constantino, Vera R. L. [1] ; Ferreira, Ana M. D. C. [1] ; Goncalves, Marcos B. [2] ; do Nascimento, Rafael R. [2] ; Petrilli, Helena M. [2] ; Caldas, Marilia [2] ; Frem, Regina C. G.
Total Authors: 9
Affiliation:
[1] Univ Sao Paulo, Dept Quim Fundamental, Inst Quim, BR-05508900 Sao Paulo - Brazil
[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Química Nova; v. 33, n. 10, p. 2135-2142, 2010.
Web of Science Citations: 2
Abstract

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. (AU)

FAPESP's process: 05/60596-8 - Complex species with potential for application in bio-organics, catalysis, pharmacology and environmental chemistry: conception, preparation, characterization and reactivity
Grantee:Ana Maria da Costa Ferreira
Support Opportunities: Research Projects - Thematic Grants