Cu/Co-salen immobilized MCM-41: characterization and catalytic reactions

Copper and cobalt (salen) complexes immobilized on the walls of MCM-41 modified with aminopropyl groups have been synthesized and characterized by various physico-chemical measurements such as XRD, FTIR, UV-Vis, EPR, TGA. UV-Vis and FTIR spectra reveal adduct formation of metal-salen complexes with the amino groups tethered to the SiO2 surface. EPR studies indicate molecular dispersion of the salen complex inside the pores of MCM-41. The activity of the immobilized complexes as catalyst for the liquid phase oxidation of olefins was investigated. (C) 2003 Elsevier B.V. All rights reserved.