Carbon eight-ed: Gas-phase reaction of ground-state carbon atoms and cycloheptatriene (C₇H₈) under single-collision conditions leads to the production of the 1,2,4,7-cyclooctatetraenyl radical (C₈H₇). Ab initio electronic structure calculation show the reaction proceeds via exotic triplet C₈H₈ reaction intermediates: the non-aromatic 2,4,6-cyclooctatriene and the aromatic 1,3,5,7-cyclooctatetraene. Picture shows the flux contour map of the reaction.

中文翻译：

---

通过三重芳环辛八烯（C8H8）和非芳族环辛三烯（C8H8）中间体气相合成难以捉摸的环辛八烯基自由基（C8H7）

八位碳原子：基态碳原子与环庚三烯（C ₇ H ₈）在单碰撞条件下的气相反应导致生成1,2,4,7-环辛酸酯基（C ₈ H ₇） 。从头算电子结构计算表明，该反应通过异乎寻常的三重态C ₈ H ₈反应中间体进行：非芳族2,4,6-环辛三烯和芳族1,3,5,7-环辛三烯。图片显示了反应的通量轮廓图。