Abstract Constructing chiral supramolecular assemblies with controllable handedness has attracted much attention in materials science, biology and chemistry, owing to their outstanding photophysical properties and novel biological effects. Herein, four gelators derived from L-phenylalanine were synthesized and their gel formation and self-assembled nanostructures were investigated. It was found that the handedness, helical pitch and diameter of these self-assemblies were successfully controlled by tuning the structure of central aromatic groups. Left- and right-handed nanofibers with different dimensions were obtained, showing configuration-regulated assembly behavior. These self-assemblies were further characterized by CD, FTIR, SEM, and UV-vis, and the results suggested that the π-π stacking among the central aromatic rings and hydrogen bonds among the amide groups at the terminals play important roles in the formation of these self-assemblies.

中文翻译：

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芳香核对L-苯丙氨酸衍生组装体超分子手性的影响

摘要 构建手性可控的手性超分子组装体，由于其优异的光物理性质和新颖的生物学效应，在材料科学、生物学和化学领域引起了广泛关注。在此，合成了四种源自 L-苯丙氨酸的凝胶剂，并研究了它们的凝胶形成和自组装纳米结构。发现这些自组装体的旋向性、螺距和直径可以通过调节中心芳香基团的结构成功控制。获得了具有不同尺寸的左手和右手纳米纤维，显示出配置调节的组装行为。这些自组装体通过 CD、FTIR、SEM 和 UV-vis 进一步表征，