复杂的柱状六角多态在一个半化电子接受纳二氧化半化的超分子组合中
Yu-Chun Wu1, Pawaret Leowanawat, Hao-Jan Sun
1Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States.
Journal of the American Chemical Society
|December 31, 2014
概括
新的纳二氧化 (NBI) 衍生物与性半化树枝自组装成有序晶体和复杂的柱状六角阵列. 这些材料对有机电子有前途,为烯受体提供了替代品.
科学领域:
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
背景情况:
- 纳二化物 (NBIs) 是一种强烈接受电子的化合物.
- 富勒烯受体在有机光伏中广泛使用,但存在局限性.
- 对于先进的材料来说,环保的功能组是可取的.
研究的目的:
- 合成新型NBI衍生物与合性半化树枝.
- 研究这些NBI衍生品的自我组装行为和固态结构.
- 探索它们作为有机电子产品中富勒烯受体的替代品的潜力.
主要方法:
- 具有不同数量的甲基烯单元 (m=1,2,3) 的NBI衍生物的化学合成,与半化AB3小连接.
- 粉末和纤维X射线衍射 (XRD) 研究.
- 固态核磁共振 (NMR) 光谱学. 固态核磁共振 (NMR) 光谱学.
- 不同扫描热量计 (DSC).差异扫描热量计.
主要成果:
- 具有m=1和m=2的NBI衍生品自组织成片状晶体.
- 具有m=3的NBI衍生品自组装成复杂的,有序的柱状六角数组.
- 这些数组转换成一个柱状六角超网,没有第一阶段相位过渡.
- 热力学控制的过程控制了板状和柱状六角结构的组装.
- 这些结构是使用XRD和固态NMR的组合来阐明的.
结论:
- 新型NBI衍生品与环保的性半化树具有独特的自我组装特性.
- 可以实现复杂的超分子架构,包括有序的柱状六角阵列.
- 这些材料对超分子电子和作为有机光伏中的烯受体的潜在替代品具有前途.
- 开发的多技术结构分析方法对于相关研究有价值.
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