Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 308, Issue 1-2, Pages 108-113Publisher
ELSEVIER
DOI: 10.1016/j.molcata.2009.03.039
Keywords
Iron complexes; Al-MCM-41; Cyclohexane; Oxidation
Categories
Funding
- Research Council of the University of Alzahra
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Biomimetic iron(III) complexes Such as [Fe(en)(2)Cl-2]Cl, [Fe(bpy)(2)Cl-2]Cl, [Fe(salen)Cl], [Fe(TPP)Cl] and [Fe(TMC)Cl] in which en, bpy, salen, TMC, and TPP refer to ethylenediamine, 2,2'-bipyridine, N,N'-bis(salicylidene)ethylenediamine), 5,7,12,14-tetramethyl-1,4,8,11 tetraazacyclotetradeca 4,6,11,13-tetraene and meso-tetraphenylporphyrin were immobilized within nanoreactors of Al-MCM-41. The structures of immobilized complexes were characterized by powder X-ray diffraction (XRD), nitrogen adsorption-desorption, FTIR and UV-vis spectroscopy. The pore volume, surface area and pore diameter of Al-MCM-41 were found to decrease after immobilization of iron complexes. It was found that immobilized iron complexes within Al-MCM-41 with the order of [Fe(bpy)(2)Cl-2] > [Fe(TPP)Cl] > [Fe(TMC)Cl] similar to [Fe(salen)Cl] > [Fe(en)(2)Cl-2]Cl catalyze the oxidation of cyclohexane to cyclohexanol and cyclohexanone with hydrogen peroxide in refluxing acetonitrile. (C) 2009 Elsevier B.V. All rights reserved.
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