Yuan Liuzhong, Yang Jingyuan, Lv Peng, Liu Yujia, Li Zeyi, Wang Yue, Dou Chuandong
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
Org Lett. 2024 Dec 27;26(51):11145-11149. doi: 10.1021/acs.orglett.4c04168. Epub 2024 Dec 16.
Two boron-doped molecular carbons (BMCs), featuring one formal boron-inserted pentalene (BP) embedded into the CB or CB polycyclic π-skeleton, were successfully synthesized. Despite their small-size conjugated structures, both of them exhibit unusual broad light absorption, narrow energy gaps, and electron-accepting ability, as well as local antiaromaticity with pseudo 4π electrons. As disclosed, these intriguing physical properties are significantly contributed by the boron atom and pentagonal ring in the BP substructure, thus demonstrating the importance of such BP incorporation into polycyclic π-systems.
成功合成了两种硼掺杂分子碳（BMC），其特征在于一个嵌入CB或CB多环π骨架中的形式上硼插入的戊搭烯（BP）。尽管它们具有小尺寸的共轭结构，但它们都表现出异常宽的光吸收、窄的能隙和电子接受能力，以及具有伪4π电子的局部反芳香性。如所揭示的，这些有趣的物理性质很大程度上由BP子结构中的硼原子和五元环所贡献，从而证明了将这种BP掺入多环π体系的重要性。
