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.

中文翻译：

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自发生成 N2O 的非血红素、高自旋 {FeNO}8 复合物

[Fe(NO)-(N3PyS)]BF4 (1) 的单电子还原导致亚稳态非血红素 {FeNO}8 复合物 [Fe(NO)(N3PyS)] (3) 的产生。复合物 3 是高自旋 (S = 1) {FeNO}8 的罕见例子，据我们所知，它是第一个产生 N2O 的单核非血红素 {FeNO}8 物种的例子。到 3 的第二条新途径包括将 Piloty 酸（HNO 供体）添加到 FeII 前体中。这项工作为一氧化氮还原酶的机制提供了可能的新见解。