bond‐resolved scanning tunneling microscopy, we discovered novel the “heterocyclic segregation” reaction of one pyrazine ring with two nitrogen atoms to form two quinoline rings with one nitrogen each. Density functional theory calculations showed that the intramolecular ring‐forming and ‐opening of N‐heterocycles are strongly affected by the initial hydrogen–substrate interaction.
环脱氢对于退火后诱导贵
金属表面上的分子平面化非常重要。与许多通过形成碳-碳键成功合成多环
芳烃的方法相比,在分子中进行碳-氮键的共轭和裂解反应仍然很少。在这里,我们对11,11,12,12-四苯基-1,4,5,8-四氮杂
蒽醌二
甲烷中的C-N键以及Au(111)上的其他三个衍
生物进行了系统转换。利用键分辨扫描隧道显微镜,我们发现了一个
吡嗪环与两个氮原子的新型“杂环偏析”反应,形成了两个
喹啉环,每个
喹啉环均具有一个氮。