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The [Ru3O(H3CCO2)6(py)2(L)]PF6 clusters, where L=methanol or dimethyl sulfoxide, can be activated by peroxide or oxygen donor species, such as tert-butyl hydroperoxide (TBHP) or iodosylbenzene (PhIO), respectively, generating reactive intermediates of the type [RuIV,IV,III3O]+. In this way, they catalyse the oxidation of cyclohexane or cyclohexene by TBHP and PhIO, via oxygen atom transfer, rather...
We report the kinetics of cyclohexane oxidation with iodosylbenzene, catalyzed by two supramolecular manganese(III) porphyrin isomers, containing four [Ru(bpy) 2 Cl] + complexes attached to the pyridyl groups of meso-tetra(3-pyridyl)porphynatemanganese(III) or meso-tetra(4-pyridyl)porphynatemanganese(III) centers. An unusual pseudozero-order mechanism was observed by monitoring the...
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