自相聚合,增强客体结合行为,和离子诱导的结合,连接了与光二化相关的旋风立体
Osamu Hayashida1, Yuya Araki1, Takaaki Miyazaki1
1Department of Chemistry, Faculty of Science, Fukuoka University, Nanakuma 8-19-1, Fukuoka 814-0180, Japan.
The Journal of organic chemistry
|May 10, 2024
概括
与二胺 (PDI) 结合的新型旋二元体在水中自组装,形成聚合物,结合水客体. 阳离子环二元体显示出阳离子诱导的聚合,特别是与核酸.
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
- 纳米技术 纳米技术
背景情况:
- 旋风二次体是宿主-客人化学的多功能支架.
- 二胺 (PDI) 是一种具有独特光物理性质的光染料.
- 聚合诱导的排放和多价值结合是超分子化学中的关键现象.
研究的目的:
- 合成阴离子,阴离子和无离子环二元体,与PDI联接.
- 在水性介质中研究这些PDI连接的旋二元体的自我组装行为和聚合诱导的结合特性.
- 探索这些系统在离子识别和聚合方面的潜力.
主要方法:
- 合成PDI连接的旋二元体 (1a,1b,1c).
- 使用临界聚合度 (CAC) 确定,动态光散射 (DLS) 和传输电子显微镜 (TEM) 进行自我聚合的表征.
- 用疏水分子和离子诱导聚合试验进行客体结合研究,通过1H NMR光谱学证实.
主要成果:
- 成功合成了与PDI相关的旋二元体 (1a,1b,1c).
- 这些二极体通过π堆叠相互作用在富含水的溶剂中形成自我聚合物,具有显著低的CAC值 (特别是1c).
- 这些聚合物表现出对疏水分子的客结合能力,并经历阴离子诱导的聚合,显著偏好核酸 (ATP>ADP>等等). ) 的情况.
结论:
- 与PDI连接的旋二元体是聚合诱导的多价值客结合的有效宿主.
- 阳离子二聚体 (1a) 显示了选择性的阳离子识别和聚合,突出了腺因基在核酸结合中的作用.
- 这些发现为开发用于传感和分子识别应用的新型超分子材料开辟了道路.
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