硫酸盐离子和基于刚性stilbene的bis (((cyclopeptide) 之间的光和质子控制的复合形成
Stefan Mommer1, Benedict Wyrwol2, Jasper E Bos1
1Leiden Institute of Chemistry, Leiden University Einsteinweg 55 2333 CC Leiden The Netherlands s.j.wezenberg@lic.leidenuniv.nl.
Chemical science
|April 3, 2025
概括
这项研究引入了一种由光和pH控制的酸盐结合的新型超分子组件. 该系统展示了可调节的宿主-客座复合体,展示了由阴离子-联结子协调驱动的响应性材料.
科学领域:
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 阳离子-连接物协调是创建超分子结构的关键.
- 金属连接体复合体中对刺激有反应的转化已被使用光开关记录得很好.
- 基于阳离子-联结子协调驱动组件的响应系统较少被探索.
研究的目的:
- 开发一种由硫酸盐协调驱动的新型可光开关的超分子组件.
- 用光和酸/刺激来研究不同组合状态之间的相互转换.
- 为了证明离子-配体协调在创建可控制的响应系统中的潜力.
主要方法:
- 合成一种硫酸盐结合 bis ((cyclopeptide) 含有可光切换的刚性-stilbene 链接器.
- 被光开关的 (E) 和 (Z) 异构体影响的组装状态的表征.
- 在硫酸盐 (HSO4-对SO42-) 的不同质子化状态下,对宿主-客人的静态度 (1:1, 1:2, 2:2) 的分析.
- 通过光照射和酸/添加,展示组装状态之间的相互转换.
主要成果:
- 开发的双环) 有效地结合了硫酸盐离子.
- 实现了明显的超分子组装状态,与光开关的异构形状和硫酸盐质子相对应.
- 可调节的主机-客人静电测量 (1:1, 1:2, 2:2) 被观察并可控制.
- 光照射和pH值变化成功诱导了这些状态之间的相互转换.
结论:
- 一个基于硫酸盐协调的新型,对光和pH敏感的超分子系统已经成功开发出来.
- 该系统展示了不同组装状态和主机-客户端静态度之间的可控转换.
- 这项工作突出了离子-接质协调驱动组件在创建先进的响应材料方面的巨大潜力.
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