核心扩展的阿扎科罗类型的合成,结构和特性:一个有两个N-Doped heptagon的扭曲π系统
Kosuke Oki1, Masayoshi Takase1, Shigeki Mori2
1Department of Chemistry and Biology, Graduate School of Science and Engineering , Ehime University , Matsuyama 790-8577 , Japan.
Journal of the American Chemical Society
|August 3, 2018
概括
研究人员从易于获得的材料中合成了一种具有独特扭曲结构的新型N-化纳米基因. 这种富含电子的分子表现出有趣的电子性质, 尽管它的结构非平面,
科学领域:
- 有机化学
- 材料科学
- 纳米技术
背景情况:
- 阿扎科罗是聚环芳,其中原子被纳入核心结构.
- 纳米基因,即石墨烯碎片,由于其独特的电子和光学特性而引起人们的兴趣.
- 实现非平面的,异质原子杂的纳米基因提出了合成挑战.
研究的目的:
- 合成一个新的核心扩展, pyrrole-fused azacoronene类似物.
- 研究这种N-doped非平面纳米基的结构和电子特性.
- 探索合成分子的芳香性和电子行为.
主要方法:
- 使用八甲和3,4-甲进行两步合成.
- 单晶X射线衍射用于明确的结构确定.
- 电化学分析 (循环电压测量) 来研究氧化行为.
- 包括NICS和ACID计算在内的计算方法用于芳香度评估.
主要成果:
- 成功合成了一种N-doped,非平面纳米基因与四二二基.
- 通过X射线衍射证实了纵向扭曲的结构, 边缘对边缘二面角为63°.
- 观察到四个可逆的氧化峰值,表明一个富有电子的π系统.
- 通过计算分析,通过非平面几何学,证明了Hückel的芳香性.
结论:
- 一种新型的,异原子合的,非平面纳米基因被合成并进行结构性特征.
- 该分子表现出丰富的氧化还原行为,并保持其二元化形式的芳香性.
- 这项工作扩大了可访问的纳米基因结构的范围,在有机电子中具有潜在的应用.
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