3 years ago

A Nonheme, High-Spin {FeNO}8 Complex that Spontaneously Generates N2O

A Nonheme, High-Spin {FeNO}8 Complex that Spontaneously Generates N2O
Pierre Moënne-Loccoz, Hirotoshi Matsumura, David P. Goldberg, Alison C. McQuilken, Alex M. Confer
One-electron reduction of [Fe(NO)-(N3PyS)]BF4 (1) leads to the production of the metastable nonheme {FeNO}8 complex, [Fe(NO)(N3PyS)] (3). Complex 3 is a rare example of a high-spin (S = 1) {FeNO}8 and is the first example, to our knowledge, of a mononuclear nonheme {FeNO}8 species that generates N2O. A second, novel route to 3 involves addition of Piloty’s acid, an HNO donor, to an FeII precursor. This work provides possible new insights regarding the mechanism of nitric oxide reductases.

Publisher URL: http://dx.doi.org/10.1021/jacs.7b05549

DOI: 10.1021/jacs.7b05549

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