(B–N)2-Heterocycles

(BâN)2-杂环

• 批准号: 426304286
• 负责人: Professor Dr. Hermann A. Wegner
• 金额: --
• 依托单位: Institut für Organische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/426304286?language=en
• 关键词: Heterocycles

Research towards the synthesis of new organic structural themes and the understanding of their physical properties is as important as ever before. In this context metal-free systems have gained increasing interest in the area of materials science for, inter alia, applications in energy conversion (e.g. organic solar cells) or storage (e.g. organic flow batteries). Inspired by our work on bidentate Lewis acid catalysis as well as azobenzene switches we could show that the combination of phenyl-bisborohydride species and azobenzenes furnishes 2,3,1,4-benzodiazadiborinanes in one step, which only have been scarcely investigated. Surprisingly, when benzo[c]cinnolin was used instead of the azobenzene a novel diradical was isolated.In this project, we will systematically investigate the preparation of such stable diradicals and study their properties. Interestingly, upon treatment with pyridine, the diradical is converted into a novel (B–N)2-acene, supporting the feasibility of such structures. Hence, the second part will be devoted to the synthesis of such novel extended (B–N)2-π-systems, which will be not only be of interest for fundamental understanding of polycyclic B,N-heteroaromatics, but also show promise for applications as new materials. The project will be supported by computations.

研究新有机结构主题的合成以及对其物理性质的理解与以往一样重要，在这种背景下，无金属系统在材料科学领域（尤其是在能量转换方面的应用）引起了越来越多的兴趣。 （例如有机太阳能电池）或存储（例如有机液流电池）受到我们在双齿路易斯酸催化以及偶氮苯开关方面的工作的启发，我们可以证明苯基双硼氢化物物种和的组合。偶氮苯一步生成 2,3,1,4-苯并二氮杂二硼烷，这一过程几乎没有被研究过，令人惊讶的是，当使用苯并[c]肉桂啉代替偶氮苯时，分离出了一种新型双自由基。在本项目中，我们将系统地进行研究。制备这种稳定的双自由基并研究其性质表明，在用吡啶处理后，双自由基被转化为一种新型的。 (B–N)2-并苯，支持这种结构的可行性，因此，第二部分将致力于合成这种新颖的扩展 (B–N)2-π-系统，这不仅令人感兴趣。不仅有助于对多环 B,N-杂芳烃的基本理解，而且还显示出作为新材料的应用前景。该项目将得到计算的支持。