含有阿佐二烯脊柱的基于二烯的协调的光交换
Max B Tipping1, Lidón Pruñonosa Lara2, Atena B Solea1
1Department of Chemistry, University of Warwick Coventry CV4 7AL UK M.D.Ward@warwick.ac.uk.
Chemical science
|June 7, 2024
概括
光开关联体使 (II) 金属复合物的光诱导结构转变成为可能. 这些组件可以在螺旋体和体结构之间相互转换,证明了对超分子化学的先进控制.
科学领域:
- 超分子化学 超分子化学
- 协调化学 协调化学
- 摄影化学的使用.
背景情况:
- 与可光切换的阿佐烯单元的迪托普桥接联体具有可调节的特性.
- 金属复杂组件可以表现出由光引起的结构变化.
- 控制超分子架构的几何和相互转换是一个关键的挑战.
研究的目的:
- 为了研究中因光引起的结构变化, (II) 金属复合物包含可光切换的连接物.
- 探索不同超分子组件类型 (螺旋体和子) 之间的相互转换.
- 为了合成和表征新的可光切换的超分子结构.
主要方法:
- 合成含有阿佐本单元的二位基桥接联体 (Lm和Lp).
- 形成 ((II) 金属复合组件.
- 亚博单元的光异构化,以诱导结构转变.
- 关键组件的结晶学表征.
主要成果:
- 一个Co2(Lp) 3三重螺旋体的光诱导转换为一个C3-对称的Co4(Lp) 6.
- 准备和表征Co4(Lm) 6复合体,包括一个循环Co4阵列.
- 基于Z:E联体异构体比率的不同Co4(Lm) 6组件之间的相互转换的演示,Co4(Z-Lm) 2(E-Lm) 4显示出高稳定性.
结论:
- 光开关联体为控制金属复杂组件的结构和动态提供了强大的工具.
- 通过使用Lp,证明了螺旋体和架构之间的相互转换 (Co2L3到Co4L6).
- 通过使用不同Z:E异构比的L:m,在各种Co4L6组件之间实现了受控的相互转换,从而推进了可光切换的超分子化学.
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