为了在水中的单层二维蜂超分子有机框架
Kang-Da Zhang1, Jia Tian, David Hanifi
1Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200043, China.
Journal of the American Chemical Society
|October 2, 2013
概括
研究人员创造了第一个单层,2D超分子有机框架在溶液中. 这种新的蜂结构使用三角形分子和黄[8]uril自组装,克服了超分子化学的先前挑战.
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
- 有机化学 有机化学
背景情况:
- 在溶液中获得明确的2D超分子聚合物仍然是一个重大挑战.
- 现有的方法往往在溶解性和控制自我组装到有序结构方面扎.
研究的目的:
- 设计和合成一种能够在水溶液中形成二维超分子框架的新型三角形分子.
- 研究自我组装过程并描述由此产生的二维超分子有机框架 (SROF).
主要方法:
- 一种刚性,被禁止堆叠的1,3,5-三乙衍生物与外围双单元和水友群体的合成.
- 通过将三角形分子与黄[8] (CB[8]) 混合以特定的摩尔比率来诱导溶液相自组合.
- 使用 (1) H NMR光谱,动态光散射,X射线衍射/散射和显微镜 (扫描探针和电子) 的表征.
主要成果:
- 在溶液中成功形成了第一个单层,2D超分子有机框架.
- 该框架呈现出周期性蜂结构,由库库比特[8]乌里尔和比皮里迪尼单位之间的宿主-客人复合稳定.
- 水友群有效地抑制了1D堆叠,并确保了三角形前体的水溶性.
结论:
- 设计的三角形分子和库库比特[8]uril使得2D超分子聚合物在水中进行受控的自我组装.
- 这项工作在创建解决方案阶段2D超分子架构方面取得了重大进展.
- 开发的系统为通过自组装设计功能性2D材料提供了一个新的平台.
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