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Negative Additive Manufacturing of Complex Shaped Boron Carbides
Published on: September 18, 2018
一个性纳米立方体的边缘定向动态共价合成
1Department of Chemistry and Chemical Biology, Rutgers-State University of New Jersey, Piscataway, New Jersey 08854, USA.
Journal of the American Chemical Society
|May 24, 2008
概括
研究人员使用边缘定向方法合成了纳米尺寸的性分子立方体. 这种方法有效地从特定的角单元和线性间隔器创建复杂的结构,产生高度纯粹的奇拉立方体.
科学领域:
- 超分子化学 超分子化学
- 有机合成 有机合成
- 纳米技术纳米技术
背景情况:
- 嵌合式分子架构对于先进的应用至关重要.
- 开发高效和可扩展的合成方法用于性纳米结构仍然是一个挑战.
研究的目的:
- 描述纳米尺寸的奇拉分子立方体的动态多元组件合成.
- 为了实现关键的性构建块的不对称合成.
主要方法:
- 使用三极角角单元和线性间距器的边缘定向组件.
- 三酸 (TFA) 催化反应用于立方体的形成.
- 动态热力学分辨率用于奇拉前体的不对称合成.
主要成果:
- 纳米尺寸的奇拉分子立方体 (1a,1b) 合成了近量化的产量.
- 使用体纯的前体 (>99% ee) 获得的同体立方体 ((all-P) - 1a, (all-P) - 1b).
- 通过cryptophane中间体实现了高于99% ee的奇拉前体 (P) - 2的不对称合成.
结论:
- 描述的边缘导向方法是有效的构建性分子立方体.
- 合成策略允许创建racemic和homochiral纳米结构.
- 证明了性构建块的高效不对称合成.
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