结构变化的宿主-宿主传输对刺激反应性吸附性质的结构变化
Nobuhiro Yanai1, Takashi Uemura, Masafumi Inoue
1Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
Journal of the American Chemical Society
|March 1, 2012
概括
客体亚博烯分子中的结构变化可逆地转化了一个多孔协调聚合物 (PCP) 主体. 这种客到主体的结构变化显著改变了气体吸附特性,为刺激反应材料提供了新的策略.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 多孔协调聚合物 (PCP) 是具有可调节结构和特性的晶体材料.
- 响应刺激的材料可以改变其性能,以应对外部触发器,如光或热.
- 控制PCP的结构转型仍然是一个挑战.
研究的目的:
- 调查客分子的结构变化是否可以诱导PCP中的宿主框架转换.
- 探索亚博烯异构的潜力,以触发PCP的可逆结构变化.
- 评估客人诱导的结构变化对PCP气体吸附特性的影响.
主要方法:
- 将亚博烯 (客体) 纳入一个灵活的多孔协调聚合物 (PCP) 框架 (主体).
- 使用光和热来诱导客亚博的 cis/trans 异构.
- 使用适当的分析技术监测宿主PCP的结构转变.
- 在刺激应用之前和之后评估宿主-客人复合物的气体吸附特性.
主要成果:
- 阿佐的 cis/trans 异构化成功诱导了宿主 PCP 中可逆的结构转变.
- 建立了一个明确的客到主体结构传输路径.
- 在宿主-客人复合物中观察到气体吸附性质的显著变化.
- 观察到的变化是可逆的,证明了材料的响应性.
结论:
- 客分子的结构变化可以有效地触发晶体宿主框架中的可逆结构转变.
- 亚二异构化作为诱导PCP中客对主结构传播的可行触发器.
- 这种方法为设计具有可调节气体吸附能力的刺激响应多孔材料提供了一种新的策略.
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