An orientational transition of bent-core molecules in an anisotropic matrix
An orientational transition of bent-core molecules in an anisotropic matrix
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DOI：
10.1126/science.288.5474.2184
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发表时间：
2000-06-23
期刊：
影响因子：
56.9
通讯作者：
Sadashiva, BK
中科院分区：
文献类型：
--
作者：
Pratibha, R;Madhusudana, NV;Sadashiva, BK
我们报告了在背景各向异性介质中弯曲核分子的取向转变的发现，在这种情况下是由棒状分子制成的近晶液晶。由此产生的指向矢本质上是非极性的，并且该介质可以被描述为正交双轴近晶。两种化合物的混合物的详细相图揭示了两种液晶相的诱导，这是具有弯核分子的化合物所特有的。边界表面的化学性质对观察到的纹理有显着影响。
We report the discovery of an orientational transition of bent-core molecules in a background anisotropic medium, in this case a smectic liquid crystal made of rod-like molecules. The resulting director is apolar in nature, and the medium can be described as an orthogonal biaxial smectic. The detailed phase diagram of mixtures of the two types of compounds revealed the induction of two liquid crystalline phases that are specific to compounds with bent-core molecules. The chemical nature of the bounding surface had a marked influence on the observed textures.