gives a radical ion pair BIQ˙+ · · · O2˙–} or a CT complex, in which intersystem crossing takes place from the triplet to the singlet state, and then radical coupling at the 1-position followed by cyclisation yields a 1,2-dioxetane, the postulated intermediate of the CL reaction. An electron-rich olefin having a closely related structure, 1,1′-dimethyl-2,2′-bisquinolylidene (BQ), shows a similar redox
2,2'-二烷基-1,1'- biisoquinolylidenes(BIQ),使用一种通过相应的二季盐的二电子还原BIQ 2+(X - )2,具有三重态分子氧反应,产生
化学发光(CL)。在非质子溶剂中,反应动力学相对于底物和
氧气的浓度是一级的。25°C下的二阶速率常数按
DMF