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The effect of Pt nanoparticles on the gas-phase photocatalytic oxidation activity of TiO2 is shown to be largely dependent on the molecular functionality of the substrate. We demonstrate that Pt nanoparticles decrease rates in photocatalytic oxidation of propane, whereas a strong beneficial effect of Pt was observed in oxidation of ethanol. On the basis of oxygen conversion, Pt nanoparticles result...
NMR study of the oxidation of several Mo(II) precatalysts [CpMo(CO)3R] (R=CH2COOC2H5 1, CH2COOBornyl 5, CH3 6, CH2C6H5 7, CH2C6F5 8) with tert-butylhydroperoxide (TBHP) in CDCl3 at 22°C shows the formation of complexes [CpMoO2R] (I), [CpMo(O)(η2-O2)R] (II) and transient species assigned as A and B. ν(MoOMo) at 678 and 655cm−1 are identified during oxidation of 5 monitored by in situ IR. DFT calculations...
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