However, their formation mechanisms in combustion and interstellar environments are not fully understood. The production of tricyclic PAHs and, in particular, the conversion of a PAH containing a five-membered ring to one with a six-membered ring are of interest to explain PAH abundances in combustion processes. In the present work, resonant ionization mass spectrometry in conjunction with isotopic labeling
多环
芳烃 (PAH) 是形成烟灰颗粒和星际颗粒的中间体。然而,它们在燃烧和星际环境中的形成机制尚不完全清楚。
三环多环
芳烃的产生,特别是含有五元环的多环
芳烃转化为含有六元环的多环
芳烃,对于解释燃烧过程中多环
芳烃的丰度很有意义。在目前的工作中,共振电离质谱与同位素标记相结合,用于研究在放电过程中
苊和
甲烷形成的苯环自由基。我们表明,在这种环境中,CH 环加成机制将五元环转化为六元环。