Abstract
Ruthenium perfluorophthalocyanine complexes were immobilized in the channels of MCM-41-type molecular sieves using three different methods: (1) ship-in-the-bottle synthesis (in situ assembling of the metal complex from smaller moieties); (2) the synthesis method (addition of the preformed complex during synthesis of the molecular sieve); and (3) grafting the complex to the functionalized silica surface of MCM-41. The resulting host/guest compounds were characterized by X-ray powder diffraction, nitrogen adsorption and solid-state infrared and ultraviolet/visible spectroscopy, and tested as catalysts for the oxidation of n-hexane or cyclohexane under ambient conditions using tertiary-butylhydroperoxide as oxidant. Depending on the synthesis method, the materials obtained differ strongly in their composition (i.e., loading with complexes) and in their catalytic activities.
Published Version
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