1 ± 0.4) × 10–4 M–1 s–1 at 25 ± 0.2 °C, ΔH# = 27 ± 1 kJ mol–1, and ΔS# = –220 ± 5 J K–1 mol–1, at pH 7.1. The value of kexp is much lower than that for similar addition reactions of NH2OH and of the N-substituted methyl derivative. In addition, the latter reactions exhibit a third-order rate law with a linear dependence of R on the concentration of OH–. The reaction profile has been modeled by density
[Fe(CN)5NO]2– 和 NH2OCH3 的
水溶液之间的反应动力学已经通过紫外/可见光谱和互补溶液技术、FTIR/ATR 光谱、质谱和同位素标记([Fe( CN)515NO]2–),在 pH 值范围 6.0–9.3 内,I = 1 M (NaCl)。主要产物是
一氧化二氮 (N15NO)、CH3OH 和 [FeII(CN)5H2O]3-,表征为 [FeII(CN)5(pyCONH2)]3- 复合物(pyCONH2 = 异烟酰胺)。在过量的 NH2OCH3 中,动力学运行表明伪一级行为,相应的速率常数 kobs [s–1] 与 NH2OCH3 的浓度呈线性相关。速率定律为:R = kexp[Fe(CN)5NO2–][NH2OCH3],其中 kexp = (4.1 ± 0.4) × 10–4 M–1 s–1 at 25 ± 0.2 °C, ΔH# = 27 ± 1 kJ mol–1,且 ΔS#