(ethoxy-2′′-pyridyl)methyl]-2,5,8-triazanon-1-ene) also formed under an inert nitrogen atmosphere. Molecular oxygen is an active player in the oxidative dehydrogenation of iron(III) complex 1. Reduced oxygen species, e.g., superoxide, (O2˙−) and peroxide (O22−), are formed and undergo single electron transfer reactions with ligand-based radical intermediates. The experimental rate law can be described
铁(III)络合物[Fe III L 3 ] 3+,1((L 3 = 1,9-双(2'-
吡啶基)-5-[(乙氧基-2) (''-
吡啶基)甲基] -2,5,8-三氮杂
壬烷)在
乙醇中存在分子氧。反应产物通过NMR光谱和X射线晶体学鉴定为相同的单
亚胺络合物[Fe II L 4 ] 2 +,2((L 4= 1,9-双(2'-
吡啶基)-5-[(乙氧基-2''-
吡啶基)甲基] -2,5,8-三氮杂-1-烯)也在惰性氮气氛下形成。分子氧是
铁(III)配合物1的氧化脱氢的活性参与者。降低的氧物种,例如,超氧化物,(O 2 ˙ - )和过氧化(O 2 2- ),形成并经历与基于
配体的自由基中间体单电子转移反应。实验速率定律可以通过三阶速率方程描述:-d [(Fe III L 3)3+ ] / dt = k OD [(Fe III L 3)3+ ] [
环氧乙烷- ] [0 2 ],其中ķ OD = 3.80±0