液晶

本书暂定概念：尚未进入正式概念库。下面是本书给出的定义原文。

定义 · 4.9 向列相液晶中的缺陷

某些有机晶体处于液相时，会表现出十分有趣的光学性质。这类晶体称为液晶(liquid crystal)，其特征是光学各向异性。这里我们关心的是所谓的向列相液晶(nematic liquid crystal)，辛氧基氰基联苯就是一例，其分子结构为

$$N\equiv C-⟨\begin{array}{l}\overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\end{array}⟩-0-C_8{H}_{17}.$$

英文原文

Certain organic crystals exhibit quite interesting optical properties when they are in their fluid phases. They are called liquid crystals and they are characterized by their optical anisotropy. Here we are interested in so-called nematic liquid crystals. An example of this is octyloxy-cyanobiphenyl whose molecular structure is

$$N\equiv C-⟨\begin{array}{l}\overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\\ \overline{-}\end{array}⟩-0-C_8{H}_{17}.$$

出处：4.9 向列相液晶中的缺陷 · node a-92a61e17c29c1c160887dc6a · 源节点 SHA-256 f55ab1ee74690b70…