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Keywords:

  • Fenton reaction;
  • iron;
  • Mössbauer spectroscopy;
  • oxygen;
  • X-ray absorption spectroscopy
Thumbnail image of graphical abstract

A combination of techniques (Mössbauer and X-ray absorption spectroscopy, H218O exchange experiments, and DFT calculations) has shown that the reaction of [Fe(H2O)6]2+ with ozone generates [(H2O)5FeIV[DOUBLE BOND]O]2+ (see calculated structure). The oxidation of selected substrates with [(H2O)5FeIV[DOUBLE BOND]O]2+ yields unique products that are different from those generated in the Fenton reaction or derived from HO. radicals.