制造自扩张的金属有机,使用环可打开的连接体
Ami Nishijima1, Yuto Osugi1, Takashi Uemura1
1Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan.
Angewandte Chemie (International ed. in English)
|March 7, 2024
概括
研究人员开发了具有可调节腔体大小的自扩展金属有机 (MOCs). 这一突破使得能够创建功能性MOC来增强分子捕获,克服以前的合成限制.
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
背景情况:
- 金属有机 (MOCs) 是通过协调驱动组装合成的,为各种应用提供可访问的分子腔.
- 定制MOC腔的大小,形状和化学环境对于先进的分子结合至关重要.
- 对MOC结构的精确控制是由金属协调和连接体配置决定的.
研究的目的:
- 报告自我扩展的MOC,在子尺寸和灵活性方面具有可调节的结构变化.
- 展示一种创新的方法,用于创建具有扩大腔的功能MOC.
- 为了克服与受不利的扩展MOC结构相关的合成挑战.
主要方法:
- 设计了一种循环连接体,其 oligomeric 链连接着 stilbene 的环.
- 使用设计的配体和Rh.II) 离子组装的母MOCs.
- 诱导MOC扩张通过选择性断裂的stilbene双键.
主要成果:
- 成功合成了自我膨胀的MOC,在保持拓的同时,在子大小和灵活性方面表现出显著的变化.
- 证明扩展的MOCs有效地因其扩大的腔隙而捕获多牙型N-捐赠分子.
- 展示了由于热因素导致扩大MOC的直接合成的不切实际性.
结论:
- 使用环开放性联体的自我扩张为MOCs的精密工程提供了一个可行的策略.
- 这种方法可以生产具有不可访问的扩大腔的功能MOC.
- 开发的方法允许通过定制的MOC结构进行适应性分子结合.
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