E.s.r. experiments employing in situ photolytic decomposition of the peroxydisulphate anion (S2O82–) have been carried out to study the reaction of SO4–˙ with aliphatic sulphides and sulphoxides. For the former, ‘dimer’ radical cations (R2SSR2+˙) are detected; these are evidently generated via direct one-electron oxidation of the sulphide (to give firstly R2S+˙). The more complex behaviour of the latter
采用ESR实验原位的过二阴离子的光解分解(S 2 ö 8 2-)已经进行了研究SO的反应4 -与脂族
硫化物和
亚砜˙。对于前者,检测到“二聚体”自由基阳离子(R 2 SSR 2 + ˙)。这些显然是通过
硫化物的直接单电子
氧化生成的(首先是R 2 S + generated)。后者[涉及的更复杂的行为,例如,我的反应2 S(O),得到CH 2 S(O)我(在低pH),ME,和内消旋2·]是根据(未检测到的)自由基阳离子R 2 S(O)+ initial的初始形成来解释的,其后的竞争反应包括去质子化和
水合(随后发生碎裂)。