Facile Nitrite Reduction in a Non-heme Iron System: Formation of an Iron(III)-Oxo

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• 作者：Ellen M. Matson ; Yun Ji Park ; Alison R. Fout
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：December 17, 2014
• 年：2014
• 卷：136
• 期：50
• 页码：17398-17401
• 全文大小：257K
• ISSN：1520-5126

文摘

Reaction of tetrabutylammonium nitrite with [N(afa^Cy)₃Fe(OTf)](OTf) cleanly resulted in the formation of an iron(III)-oxo species, [N(afa^Cy)₃Fe(O)](OTf), and NO(g). Formation of NO(g) as a byproduct was confirmed by reaction of the iron(II) starting material with half an equivalent of nitrite, resulting in a mixture of two products, the iron-oxo and an iron-NO species, [N(afa^Cy)₃Fe(NO)](OTf)₂. Formation of the latter was confirmed through independent synthesis. The results of this study provide insight into the role of hydrogen bonding in the mechanism of nitrite reduction and the binding mode of nitrite in biological heme systems.