Iron nitrosyls nucleophilic attack

Iron nitrosyls coordination, 28 146, 148 nucleophilic attack, 28 153, 154 Iron oxide, 32 54-55 activation energy, 27 16, 17 in catalytic converter, 24 62 coatings containing, 40 103-105 CO conversion, 28 263 on silver, 27 14-17... 

NO reacts with both ferric and ferrous centers in hemoproteins to form the respective iron(II) and iron(III) nitrosyl adducts, whose structural features are similar to those observed for iron (II) and iron(III) porphyrin nitrosyls. These analogies are also reflected in similar chemical reactivity observed for nitrosylated ferri- and ferroproteins and their respective porphyrin models. For example, NO-adducts of Fe(III) undergo reductive nitrosylation in the presence of an excess of NO, and a similar process is commonly observed for synthetic Fe(III) porphyrins. The first step of this reaction involves nucleophilic attack of OH on the nitrosyl ligand coordinated to the iron center, as presented in reaction (13) (33,60) ... 

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