Dr. Christian C. Carmona-Vargas, Dr. Lara Faour, Dr. Shoichi Tokunaga, Dr. Doru Constantin, Guillaume Fleith, Dr. Emilie Moulin, Prof. Dr. Nicolas Giuseppone
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引用次数: 0
摘要
机械活性[c2]菊花链轮烷被介质功能化，从而显示出液晶特性。研究表明，这种双稳态轮烷的机械致动（在收缩态和延伸态之间）会改变其各向同性相和共晶相之间的转变温度。此外，小角 X 射线散射（SAXS）实验还显示，在机械键的控制下，层间距离的改变会相应地改变晶相。N. Giuseppone 及其合作者在研究文章中描述的工作为在响应材料中应用 [c2] 菊花链轮烷提供了新的机遇。
Front Cover: Molecular Actuation of a Bistable Liquid-Crystalline [c2]Daisy Chain Rotaxane (ChemistryEurope 1/2024)
Mechanically active [c2]daisy chain rotaxanes were functionalized with mesogens to display liquid-crystalline properties. It was shown that the mechanical actuation of such bistable rotaxanes (between their contracted and extended states) modifies the transition temperature between their isotropic and smectic phases. In addition, small angle X-ray scattering (SAXS) experiments revealed a modification of the smectic phase corresponding to the modification of the interlayer distance as controlled by the mechanical bond. The work described by N. Giuseppone and co-workers in their Research Article opens new opportunities to implement [c2]daisy chain rotaxanes in responsive materials.
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