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本文报道1,4-二苯基-1,3-丁二烯的氰基蒽敏化光氧化反应,并讨论了反应机理.在溶剂乙腈和四氯化碳中,荧光淬灭、激基复合物及其自由能变化支持了电子转移反应机制.在四氯化碳中的反应与在极性溶剂乙腈中的完全不同.在四氯化碳中进行的完全是单线态氧的反应,而在乙腈中则发生了负氧离子基的氧化反应.从乙腈中的反应,我们分离得用臭氧直接氧化时难以得到的臭氧化物——3-苯基-5(2-苯基)-乙烯基-1,2,4-三氧杂环戊烷.
In this paper, we report the sensitization of cyanoanthracene to 1,4-diphenyl-1,3-butadiene and discuss the reaction mechanism. In solvent acetonitrile and carbon tetrachloride, fluorescence quenching, exciplex The changes in the species and their free energies support the electron transfer reaction mechanism. The reaction in carbon tetrachloride is completely different from that in the polar solvent acetonitrile, which is entirely a singlet oxygen reaction in carbon tetrachloride, In acetonitrile, negative oxygen ion-based oxidation took place. From the reaction in acetonitrile, we isolated 3-phenyl-5 (2-phenyl) 1,2,4-trioxolane.