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Keywords:

  • IR spectroscopy;
  • NMR spectroscopy;
  • reaction mechanisms;
  • reduction;
  • zeolites
Thumbnail image of graphical abstract

Side on! Combined FTIR and NMR studies revealed the presence of a side-on nitrosyl species in the zeolite Cu-SSZ-13. This intermediate is very similar to those found in nitrite reductase enzyme systems. The identification of this intermediate led to the proposal of a reaction mechanism that is fully consistent with the results of both kinetic and spectroscopic studies.