协调驱动的自组装多边形的超分子到超分子转换
Liang Zhao1, Brian H Northrop, Peter J Stang
1Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, USA. liangz@chem.utah.edu
Journal of the American Chemical Society
|August 16, 2008
概括
研究人员实现了新的超分子转换,将自组装的白金多边形转换为不同的结构. 这种金属有机多边形转换为创建和修改复杂分子架构提供了一种新的方法.
科学领域:
- 超分子化学 超分子化学
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
背景情况:
- 自组装的金属有机多边形是复杂的结构,具有潜在的应用.
- 控制超分子转换对于设计先进的分子材料至关重要.
研究的目的:
- 为了证明的可控制的超分子转换 (P) 二甲金属有机多边形.
- 通过特定的化学反应,探索将一个多边形结构转换为另一个多边形结构.
主要方法:
- 预先形成的 [6+6] 六边形或三角形正方形混合物的反应 Pt(II) -pyridyl 多边形与碳.
- 使用二氧基供体连接体的乙部分进行转化.
- 使用质子和-31核磁共振 (1H和31P NMR) 光谱学的表征.
- 通过电子喷射电离 (ESI) 质谱法识别转化物种.
主要成果:
- 一个 [6 + 6] 六角形成功地转化为两个 [3 + 3] 六角形.
- 三角形和正方形多边形的混合物被转换成 [2 + 2] 圆柱体.
- 核磁共振光谱学证实了转化过程和量化产量.
- 通过ESI质谱仪验证了新形成的多边形的结构.
结论:
- 实现了新型的超分子到超分子转换,用于Pt(II) -pyridyl多边形.
- 证明了可以控制地将一个自组装的多边形结构转换为替代架构的能力.
- 为复杂的自组装多边形的构建和随后的转换建立了可行的途径.
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