Redox selectivity? Seven-coordinate manganese(II) pentaazamacrocyclic complexes stimulate NO disproportionation by a novel dismutation mechanism based on the formation of labile metal–nitrosyl adducts and which is associated with the MnII/MnIII redox cycle. The metal-bound NO in these aducts has the character and reactivity of NO− and NO+ species. Ex vivo studies suggest that superoxide dismutase mimics of this kind could interfere with NO-mediated processes in biological milieu.
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Filipović et al. (2008) studied this question.
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