在空间上受限的单分子折叠实现了多色光
Xiaolu Zhou1,2, Xin-Kun Ma1, Xiaoye Zhang1
1College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University Tianjin 300071 P. R. China yuliu@nankai.edu.cn.
Chemical science
|November 26, 2025
概括
研究人员使用库库比特[8]uril (CB[8]) 和trifenylamine衍生物制造了一种新型的超分子聚合物. 这种材料表现出可调节的近红外光,使动态信息加密应用成为可能.
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
- 有机电子 有机电子
背景情况:
- 超分子聚合物通过自我组装提供独特的特性.
- 控制像光等光物理性质对于先进材料至关重要.
- 像cucurbiturils这样的宏环宿主可以模拟复杂的结构.
研究的目的:
- 合成一种纯有机超分子聚合物,具有可调节的近红外光.
- 调查宏环封闭和聚合在诱导特定光物理性质中的作用.
- 探索这些材料在动态信息加密方面的潜力.
主要方法:
- 在库库比特[8]乌里尔 (CB[8]) 中封装三胺衍生物,形成双轴性伪素.
- 用烯胺对暴露的乙烯单元进行定向聚合,以制造超分子聚合物 (p-TAPCB).
- 调整光特性,通过调整CB[8]比率,并使用光共振能量转移 (PRET) 与TPE供体.
主要成果:
- 一种纯有机超分子聚合物 (p-TAPCB),具有近红外室温光 (NIR RTP),具有高量子产量 (47.03%).
- 可调的光色通过改变CB[8]比率来实现,这取决于激发波长和度.
- 使用PRET,NIR发射寿命从9.87ms灵活操纵到1490ms,具有很大的斯托克斯转移 (390nm).
结论:
- 宏观循环封闭和聚合协同诱导在高分子聚合物中高效的NIR RTP.
- 开发的材料具有可调节的发射颜色和可控制的寿命,适合动态信息加密.
- 这项工作为设计先进的功能性超分子材料提供了一个多功能平台.
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