for 4. The reactivity of each of these complexes with other small molecules such as NO2−, NO3−, CO, and O2 was also studied. None of the complexes react with CO and O2. CoIII complexes 1 and 2 react with NO2−, while FeIII complexes, 3 and 4, do not react with small amounts of NO2−. Complex 3 reacts with NO2− at concentrations above 100 equiv. of NO2−. We succeeded in preparing complexes with highly
为了构建对NO具有高度选择性结合活性的化合物,两个具有方形N 2 O 2型供体的Co III和两个Fe III配合物,N- [2-(2-羟基苄
氨基)乙基] -2-羟基苯甲酰胺(H 3 L1)和1,2-双(2-羟基苯甲酰基
氨基)
乙烷(H 4
L2),[Co III(L1)](1),Na [Co III(
L2)](2),[Fe III(L1)](3)和(PPh 4)[Fe III(
L2))](4),进行了设计和合成。这些化合物的特征在于电子吸收,FT-IR,1 H-NMR光谱,ESI质谱和元素分析。的Co的氧化还原电位III和Fe III与络合物L1,1和3,具有准可逆波分别在-0.51和-0.49 V,和那些与
L2,2和4,在-0.96和-1.04 V,分别得到可逆和不可逆波。有趣的是,如通过紫外可见光谱法所监测的,所有络合物在Ar气氛下迅速与NO反应形成亚
硝酰基络合物。亚
硝酰基配合物的形成可以通过在1650