在atrane结构中可逆的,溶剂诱导的奇拉性切换器:控制分子螺旋的单向运动
Alexandre Martinez1, Laure Guy, Jean-Pierre Dutasta
1Laboratoire de Chimie, CNRS, École Normale Supérieure de Lyon, 46 Allée d'Italie, F-69364 Lyon, France. alexandre.martinez@ens-lyon.fr
Journal of the American Chemical Society
|June 12, 2010
概括
阿特兰-海米克里托芬分子显示了可逆的奇拉性变化,由溶剂控制. 这一发现为刺激分子开关提供了一种新方法,为分子运动提供了独特的控制.
科学领域:
- 超分子化学 超分子化学
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
背景情况:
- 阿特兰-海米克里托芬分子具有固有的奇拉性,这是由于它们的循环三利烯单元和奇拉性以太群.
- 阿特兰部分的 Δ/Λ 排列通过受限制的螺旋结构引入了局部不对称性.
研究的目的:
- 为了证明阿特兰-海米克里托芬分子表现出溶剂控制的可逆性奇拉性变化.
- 为了建立一个新的刺激模式,以atrane为基础的分子开关.
主要方法:
- 合成和表征氧化 (((V) 复合体的半密托分子.
- 质子核磁共振 ((1) H NMR) 谱学用于研究 Δ Λ 相互转换过程.
- 使用化-d (CDCl) 和-d) 的溶剂操纵 (C) 诱导性逆转.
主要成果:
- 在这项研究中,观察到由循环三乙烯单元和奇拉性以太基组的手性产生的二聚体混合物.
- 发现溶剂的选择极大地影响了螺旋运动的性感.
- 在CDCl ((3) 和C ((6) D ((6) 之间的交替溶剂诱导可逆的性反转.
结论:
- 溶剂在指导瓦纳部分的旋转运动,控制螺旋的感觉方面发挥着至关重要的作用.
- 基于阿特兰的分子开关可以通过溶剂诱导的奇拉性变化来刺激和控制.
- 这项工作建立了一种新且可行的方法,用于使用外部刺激控制分子性.
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