通过协调球体工程进行低对称性Pdn L2n纳米的灾难选择性自组装
Paulina Molinska1, Andrew Tarzia2, Louise Male1
1School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK.
Angewandte Chemie (International ed. in English)
|October 27, 2023
概括
协调球体工程 (CSE) 精确地控制金属有机 (MOC) 异构体的形成. 了解第二协调球效应使得复杂的低对称性MOC的有针对性的设计成为可能.
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
- 协调化学 协调化学
背景情况:
- 金属有机 (MOCs) 是由金属离子和有机连接体构建的多功能主机架构.
- 合成复杂的,低对称的MOCs具有特定的腔体形状是具有挑战性的,因为统计异构体的形成.
- 控制异构体选择性对于定制MOC属性至关重要.
研究的目的:
- 为了研究协调球体工程 (CSE) 控制异构体选择性在同类和异构体PdnL2n.
- 了解第二个协调球对同位素稳定性和选择性的影响.
- 为了获得分子层面的洞察力,了解MOC中的二极立异构体选择性.
主要方法:
- 在连接体设计中,供体组的系统变化.
- 基于的MOCs (PdnL2n) 的合成和表征.
- 使用结构和光谱技术分析异构体分布和稳定性.
主要成果:
- 在替代性供体组中观察到异构体选择性的意想不到差异.
- 第二个协调球体显著影响异构体稳定性,超出了初级连接体设计.
- 宿主-客人和宿主-溶剂相互作用被确定为影响 cis/trans 异构体选择性的关键因素.
结论:
- 主要CSE可以在MOC中偏向异构体选择性.
- 第二个协调球体的相互作用对于理解和控制MOC组装至关重要.
- 这项工作为设计响应刺激的,形状变化的MOC提供了一个框架,具有量身定制的低对称性架构.
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