Rates of decomposition for 1,2-dioxetanes obtained from addition of singlet oxygen to substituted 2,3-diaryl-1,4-dioxenes have been found to obey a Hammett relationship with ϱ+ = −0.24 (n = 15, r = 0.92). The results are taken as support for a biradical mechanism.
已经发现,通过将单重态氧加到取代的2,3-二芳基-1,4-二恶烯中而获得的
1,2-二氧杂环丁烷的分解速率服从哈米特关系,ϱ + = -0.24(n = 15,r = 0.92 )。结果被认为是支持双基机理的。