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单线态氧(~1△g≡~1O_2)在某种情况下与碳碳双键可发生[2+2]环加成反应,生成二氧杂环丁烷。后者一般不稳定,在室温下通常分解为相应的羰基化合物并发光。
Singlet oxygen (~ 1 △ g≡ ~ 1O_2) can react [2 + 2] with carbon-carbon double bond to form dioxetane. The latter is generally unstable and generally decomposes to the corresponding carbonyl compound and emits light at room temperature.