本文从荧光淬灭、激基复合物、E_(1/2)的测定和k_a,△G的计算证明了典型的单线态氧的“探针”化合物a-蒎烯和β-蒎烯在极性溶剂中,用9,10-二氰基蒽(DCA)作敏化剂时,发生的是电子转移敏化光氧化反应。通过反应产物的分离和鉴定、溶剂效应的研究以及单线态氧和自由基淬灭剂对反应的淬灭试验,进一步讨论了该反应的机理。 In this paper, the fluorescence quenching, exciplex, E_ (1/2) determination and k_a, △ G calculations show that the typical singlet oxygen “probe” compounds a-pinene and β-pinene in the pole In the case of using 9,10-dicyanoanthracene (DCA) as a sensitizer, electron transfer-sensitized photooxidation takes place in a solvent. The mechanism of the reaction was further discussed by the separation and identification of reaction products, the study of solvent effect and the quenching of the reaction by singlet oxygen and free radical quencher.