在3D协调网络中,水晶与水晶之间对大型有机分子进行客户交换
Osamu Ohmori1, Masaki Kawano, Makoto Fujita
1Department of Applied Chemistry, School of Engineering, The University of Tokyo, Japan, and Genesis Research Institute, Inc., Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
Journal of the American Chemical Society
|December 17, 2004
概括
这项研究展示了3D协调网络中的单晶客户交流. 像三烯和炭烯这样的平面分子被成功交换,由于捐赠者-接受者相互作用导致显著的颜色变化.
科学领域:
- 材料科学 材料科学 材料科学
- 晶体学 晶体学是指结晶学.
- 超分子化学 超分子化学
背景情况:
- 三维协调网络为分子封装提供多孔结构.
- 在晶体框架内控制客人交换对于功能材料至关重要.
研究的目的:
- 在3D协调网络中研究大型分子的单晶对单晶客体交换.
- 分析管理客人的包容和交流的结构和电子交互.
主要方法:
- 用单晶X射线衍射分析了客人交换前后的晶体结构.
- 结晶学分析被用来研究客体和宿主连接体之间的堆叠相互作用.
- 使用光谱方法观察与客人纳入相关的颜色变化.
主要成果:
- 在3D协调网络中,成功地实现了单晶客体交换,其中包括三烯,炭烯和烯在内的大型分子.
- 结晶学分析揭示了平面客体和宿主配体之间的高效pi-pi堆叠相互作用.
- 平面客人的包容复合体表现出剧烈的颜色变化,表明强烈的捐赠者-接受者相互作用.
结论:
- 三维协调网络为平面芳香分子提供可逆单晶客体交换.
- 缺乏电子的配体和富含电子的客体之间的捐赠者-受体相互作用是观察到的颜色变化和复杂稳定性的关键.
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