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采用ＥＳＲ方法研究了α－和β－Ｎ－苯基取代萘胺在苯溶液中的分解过程及其反应中间体．结果表明，有三种自由基被检测到，即Ｈ·，Ｃ１０Ｈ·７和Ｃ６Ｈ５（Ｈ）Ｎ·自由基．其中值得注意的是萘自由基的生成，这意味着在一定的光解条件下，苯基萘胺分子中的Ｃ－Ｎ键可发生断裂，萘基可从氮原子上断裂下来．同时，通过调节自旋捕捉剂的浓度与添加光敏剂，可以明显地改变三种自旋捕获物的相对生成比例，借此得到三种自由基结构与光稳定性的信息．此外，本文还结合量子化学的计算讨论了此光解过程各种自由基生成的可能性．
ESR method was used to study the decomposition process and reaction intermediates of α- and β-N-phenyl-substituted naphthylamines in benzene solution. The results showed that three free radicals were detected, namely H ·, C10H · 7 and C6H5 (H) N · radicals. Among them, it is noteworthy that the formation of naphthalene free radicals, which means that under certain photolysis conditions, the C-N bond in the phenylnaphthylamine molecule can be broken and the naphthyl group can be broken off from the nitrogen atom. At the same time, by adjusting the concentration of the spin trapping agent and adding the photosensitizer, the relative formation ratio of the three spin traps can be obviously changed, thereby obtaining the information of three free radical structures and photostability. In addition, this paper also discusses the possibility of various free radical generation in this photolysis process combined with quantum chemistry calculations.