超分子化学
发光
发色团
聚合
环加成
材料科学
超分子手性
单体
手性(物理)
量子产额
超分子聚合物
荧光
纳米技术
光化学
化学
结晶学
光电子学
聚合物
光学
有机化学
物理
催化作用
手征对称性
复合材料
晶体结构
Nambu–Jona Lasinio模型
量子力学
夸克
作者
Wei Yuan,Letian Chen,Chuting Yuan,Zidan Zhang,Xiaokai Chen,Xiaodong Zhang,Jingjing Guo,Cheng Qian,Zujin Zhao,Yanli Zhao
标识
DOI:10.1038/s41467-023-43830-x
摘要
Abstract Developing facile and efficient methods to obtain circularly polarized luminescence (CPL) materials with a large luminescence dissymmetry factor ( g lum ) and fluorescence quantum yield ( Φ Y ) is attractive but still challenging. Herein, supramolecular polymerization of styrylpyrenes ( R / S -PEB) is utilized to attain this aim, which can self-assemble into helical nanoribbons. Benefiting from the dominant CH-π interactions between the chromophores, the supramolecular solution of S -PEB shows remarkable blue-color CPL property ( g lum : 0.011, Φ Y : 69%). From supramolecular solution to gel, the emission color (blue to yellow-green) and handedness of CPL ( g lum : –0.011 to +0.005) are concurrently manipulated, while the corresponding supramolecular chirality maintains unchanged, representing the rare example of color-dependent CPL materials. Thanks to the supramolecular confine effect, the [2 + 2] cycloaddition reaction rate of the supramolecular solution is 10.5 times higher than that of the monomeric solution. In contrast, no cycloaddition reaction occurs for the gel and assembled solid samples. Our findings provide a vision for fabricating multi-modal and high-performance CPL-active materials, paving the way for the development of advanced photo-responsive chiral systems.
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