ABSTRACT A series of cyano tail-terminated alkoxy and alkyl cyanobiphenyl compounds and some cyano-p-terphenyl derivatives were synthesized and mesogenic properties described. Comparison with the K series and M series indicates that the terminal cyano group generally enhances the supercooling of the molecules. Furthermore, several binary LC mixtures formed by the cyano tail-terminated compounds were found exhibiting promising room temperature nematic phases ranges comparable to the commercial quaternary mixture E7. The equimolar binary mixture of CN5OCB and CN7OCB shows homeotropic ordering at the metal salts-decorated surfaces and planar ordering at the free surface, which is consistent with GBE values we calculated. As such, these materials are promising candidates for sensor devices which display a rapid response to a variety of analytes. Graphical Abstract

中文翻译：

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通过烷氧基和烷基氰基联苯的氰基尾端终止新的室温线虫剂及其在金属盐装饰表面的锚定行为

摘要合成了一系列氰基尾端烷氧基和烷基氰基联苯化合物以及一些氰基对三联苯衍生物，并描述了介晶性质。与 K 系列和 M 系列的比较表明，末端氰基通常会增强分子的过冷度。此外，发现由氰基尾端化合物形成的几种二元 LC 混合物表现出与商业四元混合物 E7 相当的有希望的室温向列相范围。CN5OCB 和 CN7OCB 的等摩尔二元混合物在金属盐修饰的表面显示垂直有序，在自由表面显示平面有序，这与我们计算的 GBE 值一致。因此，这些材料是传感器设备的有希望的候选者，它们对各种分析物显示出快速响应。