Direct Synthesis of Hydrogen Peroxide from Hydrogen and Oxygen by Using a Water-Soluble Iridium Complex and Flavin Mononucleotide

H2 , O2 to H2 O2 : The direct synthesis of hydrogen peroxide from hydrogen and oxygen in water has been made possible by using an iridium(III) complex, [Ir(III) (Cp*)(4-(1H-pyrazol-1-yl-κN(2) )benzoic acid-κC(3) )(H2 O)]2 SO4 , and flavin mononucleotide. This method gives hydrogen peroxide with a high turnover number (847) and yield (19.2 %) under normal pressure and at room temperature.

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