Based on the results obtained from potentiometric titration, cyclic voltammogram measurement, electrolytic reduction hydroxylation and UV, ESR spectrum, plausible mechanisms of O_2 activation for both reducing systems could be drawn.

• 根据氧化还原滴定、循环伏安法、电解还原羟化反应以及光谱实验等测定结果,对这两个不同体系提出了各自可能的氧的活化机理。