间隔体性和平度在中位体二次体中的相互作用
Antonija Ožegović1, Anamarija Knežević1, Jurica Novak2
1Ruđer Bošković Institute, Bijenička 54, 10000, Zagreb, Croatia.
概括
在它们的间隔器中具有奇拉中心的奇拉液晶二元体表现出独特的中相. 奇配二元体显示蓝色相和性扭曲形阴性相,受间隔器性和平度的影响.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 凝聚物质物理学 凝聚物质物理学
背景情况:
- 奇拉性显著影响软材料的自我组织和特性,如液晶 (LC).
- 了解分子结构,特别是灵活间隔器中的性如何影响LC行为,对于设计先进材料至关重要.
研究的目的:
- 为了在灵活的间隔器中合成具有奇拉中心的新奇奇拉液晶二次体.
- 为了研究间隔器性,长度和平度对中形态行为和性诱导的影响.
- 探索内在间隔器性对液晶相中的整体结构性的影响.
主要方法:
- 合成了新型的奇拉液晶二极体,以纯种和纯种的形式.
- 间距长度和平度的变化,以研究结构-属性关系.
- 介质形态行为的表征,包括相位过渡和结构分析.
- 使用螺旋式扭转功率测量对阴性宿主中性诱导的评估.
主要成果:
- 偶成员的性二次体完全形成了性阴性相.
- 奇配二元体表现出多样化的半形态,包括蓝色阶段和性扭曲体 (N*TB) 阶段.
- 种族和性N*TB阶段之间3D表面形态的显著差异表明,间隔器促进了性层次结构.
- 状二元体显示出明显的奇偶对螺旋螺旋扭转功率的奇偶效应.
结论:
- 在二维分子中,奇拉群的位置对于确定其中等态性质至关重要.
- 灵活间隔器内的内在性在建立整体结构性中起着关键作用.
- 这些发现提供了对奇拉液晶材料的设计原理的新见解.
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