嵌合体,四面体M4L6金属连接体宿主的分辨率
Anna V Davis1, Dorothea Fiedler, Marco Ziegler
1Department of Chemistry, University of California, Berkeley, California 94720-1460, USA.
Journal of the American Chemical Society
|November 21, 2007
概括
使用奇拉性阴离子解开了奇拉性高分子金属连接体组件,证明了质子依赖性和外部结合点相互作用. 已解决的结构表现出稳定的性,客人可能会稳定框架.
科学领域:
- 超分子化学 超分子化学
- 协调化学 协调化学
- 奇拉性研究 奇拉性研究
背景情况:
- 使用M416固态度测量对奇拉性高分子金属连接体组件的探索.
- 对于这些复杂结构的反体,需要有效的分离方法.
研究的目的:
- 描述使用S-尼古 (S-nic+) 的奇拉[M(4) 1 ((6) ]12-组件的分辨率过程.
- 调查影响分辨率的因素,包括质子依赖和结合点.
- 描述已解决的合组件的稳定性和特性.
主要方法:
- 使用S-尼古酸组件的金属合体组件的奇拉分辨率.
- 沉和隔离二聚体盐. 沉和隔离二聚体盐.
- 离子交换以获得各种反离子盐 (NEt4+,NMe4+,K+).
- 使用循环二重化 (CD) 和核磁共振 (NMR) 光谱仪进行表征.
主要成果:
- 达到了Ga (III),Al (III) 和Fe (III) 组件的成功分辨率,并证明它们是质子依赖的.
- 组件的外部结合点负责与S-nic+的反体相互作用.
- 已解决的 (NMe4+) 12 和 (NEt4+) 12 盐的[Ga(4) 1 6]12-和[Al(4) 1 6]12-在室温和高温时表现出稳定的奇拉性.
- 客分子在稳定已解决的框架方面发挥着作用.
结论:
- 奇拉的超分子组件可以有效地使用奇拉的 counterions 解决.
- 解决机制涉及外部绑定站点的特定相互作用.
- 已解决的合组件表现出了显著的稳定性,这表明了合性至关重要的应用的潜力.
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