Abstract The liquid crystal new twin hydrazone derivatives of quinolone have been synthesized by many steps procedure. The molecular structure of these compounds was confirmed by elemental analysis and FTIR, mass, 13CNMR and 1HNMR spectroscopy. The mesomorphic properties were studied by using differential scanning calorimetry (DSC) and polarized optical microscopy (POM). Almost of the synthesized compounds exhibited enantiotropic nematic phase. The mesomorphic behavior was found to be dependent on the geometry of the molecule, terminal and the central linkage group.

中文翻译：

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一些喹诺酮衍生物衍生孪晶化合物的合成及液晶行为

摘要 喹诺酮类液晶新型双腙衍生物已通过多步合成。这些化合物的分子结构通过元素分析和 FTIR、质谱、13CNMR 和 1HNMR 光谱证实。通过使用差示扫描量热法 (DSC) 和偏光显微镜 (POM) 研究了介晶性质。几乎合成的化合物表现出对映向列相。发现介晶行为取决于分子、末端和中心连接基团的几何形状。