高度共平面的非常长的基:具有特定的头对头缺陷的结合系统
Xu-Hui Jin1, Dennis Sheberla, Linda J W Shimon
1Department of Organic Chemistry and Chemical Research Support Unit, Weizmann Institute of Science , Rehovot 76100, Israel.
Journal of the American Chemical Society
|January 21, 2014
概括
我们合成了新的,平面的原,包括有史以来最长的16米. 这些合寡合体具有高光度和独特的电子特性,不受常见结构缺陷的影响.
科学领域:
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 具有平面脊柱的合寡合物具有显著的兴趣.
- 奥利戈兰是一种结合分子的类别,在有机电子学中具有潜在的应用.
- 结构缺陷,如头对头连接,可以破坏平面性并影响电子特性.
研究的目的:
- 为了合成和表征一系列对称的,同位素纯净的橄素.
- 为了研究结合长度对奥利戈兰的特性的影响.
- 为了探索最长的合成橄素16F-6C6的电子特性,特别是它的氧化还原状态.
主要方法:
- 合成具有不同结合长度 (nF-2C6,n=4,6,8和16F-6C6) 的奥利戈兰.
- 计算研究以建模分子结构和属性.
- 光谱表征 (例如,UV-Vis,光) 和X射线晶体学.
- 对氧化还原状态的实验和计算研究.
主要成果:
- 尽管存在头对头的缺陷,但 furan 骨干的平面性在很大程度上保持不变,与 thiophene 类似物不同.
- 奥利戈富兰的特性受到长的显著影响.
- 16米尔的奥利戈 (16F-6C6) 是稳定的,高度光,并在其双氧化状态下表现出单片二基性质.
- 16F-6C6的开单片状态比闭单片状态更稳定.
结论:
- 奥利戈兰提供了一个有前途的类型的结合材料与调节性质的属性.
- furan 骨干对缺陷的坚固性使得它们对电子应用具有吸引力.
- 16F-6C6 代表了化合成和电子表征的新基准.
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