Chemical behavior of 5-vinyl-2-norbornene, 5-ethylidene-2-norbornene, and related compounds as a key to understanding the specifics of radiation—Chemical processes: 4. Transformations of excited triplet molecules of 5-vinyl-2-norbornene in benzene and cyclohexane
作者:I. Yu. Shchapin、O. V. Makhnach、V. L. Klochikhin、Yu. G. Osokin、A. I. Nekhaev
DOI:10.1134/s0965544110010111
日期:2010.1
and cyclohexane, were studied in the presence of the triplet sensitizer acetophenone. It was found that the endo-isomer was rearranged to [4.2.1.02,5.03,7]nonane, and the exo-isomer remained unchanged. In the absence of acetophenone, the rearrangement of the endo-isomer did not occur. It was concluded that in the initial stages of the γ radiolysis of diene solutions in benzene and cyclohexane, the
在三重态敏化剂苯乙酮的存在下,研究了在苯和环己烷中辐射和光化学生成的外-和内基-5-乙烯基-2-降冰片烯三重态分子的化学行为。有人发现,内异构体被重新安排,以[4.2.1.02,5.03,7]壬烷,以及外异构体保持不变。在不存在苯乙酮,重排的的内-异构体未发生。结论是,在苯和环己烷中二烯溶液的γ辐射分解的初始阶段,三重态激发不会从溶剂分子转移到二烯分子。在苯中,二烯在与中性自由基的反应中被消耗,中性自由基是溶剂三重态分子分解的产物。在环己烷中,由于正电荷从溶剂分子中转移出来,二烯分子被活化。