d8 罗和的复合体,由冠烯组成
Jay S Siegel1, Kim K Baldridge, Anthony Linden
1Institute of Organic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland. jss@oci.unizh.ch
Journal of the American Chemical Society
|August 17, 2006
概括
新的罗和复合物与冠烯显示出独特的结合和反应性. 复合体在曲面上表现出动态运动,与类似物不同,为有机金属化学提供了洞察力.
科学领域:
- 有机金属化学 有机金属化学
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
背景情况:
- 循环甲 (COE) 稳定金属碎片是有机金属化学中的关键合成物.
- 冠烯是一种曲的多环芳,为金属复合物提供了独特的结合机会.
- 了解金属相互作用对于设计新型催化剂和材料至关重要.
研究的目的:
- 合成和表征 (Rh) 和 (Ir) 的新型eta6结合的冠烯复合物.
- 为了研究这些复合物的结合模式和动态行为,在曲的冠烯表面.
- 为了探索金属碎片的反应性,而协调到corannulene.
主要方法:
- 合成的[{COE) 2Rh{eta6-C20H10) ]PF6和[{COE) 2Ir{eta6-C20H10) ]PF6.
- 使用X射线衍射进行结构性表征.
- 解决方案NMR研究探测动态行为.
- 计算研究以阐明反应机制.
- 最初的反应性研究包括转移脱和替代.
主要成果:
- 成功合成和表征了两个新型eta6结合的冠烯复合体.
- X射线衍射揭示了固态结合模式,与已知的arene类似物相美.
- 溶液NMR显示了Rh复合物的流动性行为,这归因于枢纽迁移,而Ir复合物保持静态.
- 反应性研究表明,金属碎片保留化学活性,而与冠烯结合.
结论:
- 和的COE稳定碎片与冠烯形成稳定的eta6结合的复合物.
- 罗复合物在冠烯上的动态行为与其同类物显著不同.
- 冠烯结合的金属碎片可以参与进一步的化学转化,为新的合成方法开辟了道路.
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