A novel radical reaction of monometallofullerene Y@C_2v(9)-C₈₂ with N-arylbezamidine (1) is successfully conducted through catalysis with silver carbonate. The high-performance liquid chromatographic and mass spectrum results demonstrate that the reaction is highly regioselective to afford only one monoadduct (2) with an imidazoline group added on C₈₂ cage, and computations through density functional theory reveal the addition group is attached to a specific [5, 6]-bond (C20-C76) near the Y atom. Furthermore, the analysis of prymidalization angle of the carbon atoms demonstrates the geometry of carbon cage is in favor of the regioselective formation of isomer (20, 76).

单金属富勒烯Y @ C _2v（9）-C ₈₂与N-芳基氮杂（1个）是通过碳酸银催化成功进行的。高效液相色谱和质谱结果表明，该反应具有很高的区域选择性，仅可提供一种单加合物（2）在C ₈₂笼子上添加了一个咪唑啉基团，通过密度泛函理论进行的计算表明，该加成基团连接至Y原子附近的特定[5，6]键（C20-C76）。此外，对碳原子的丙烯酰化角的分析表明，碳笼的几何形状有利于异构体的区域选择性形成（20、76）。