The Liquid Crystal Properties of 4-<i>n</i>-Alkyl- and 4-<i>n</i>-Alkoxy-phenyl 4-<i>n</i>-Alkylbicyclo (2.2.2) octane-1-carboxylates
作者:G. W. Gray、S. M. Kelly
DOI:10.1080/00268948108073606
日期:1981.10
series of esters incorporating the 1, 4-disubstituted bicyclo(2.2.2)octane ring system are reported. Thirty-three 4-n-alkylphenyl 4-n-alkylbicyclo(2.2.2)octane-1-carboxylates and thirty 4-n-alkoxyphenyl 4-n-alkylbicyclo(2.2.2)octane-1-carboxylates have been prepared and found to exhibit wide-range nematic phases persisting until higher temperatures than those of the corresponding esters containing
摘要 报道了包含 1, 4-二取代双环 (2.2.2) 辛烷环系统的两个新系列酯。已经制备并发现了 33 种 4-n-烷基苯基 4-n-烷基双环 (2.2.2) 辛烷-1-羧酸酯和 30 种 4-n-烷氧基苯基 4-n-烷基双环 (2.2.2) 辛烷-1-羧酸酯表现出宽范围的向列相持续到比含有反式-1, 4-二取代环己烷环或1, 4-二取代苯环代替双环辛烷环的相应酯更高的温度。已发现这些新型双环辛烷酯与氰基联苯的混合物在扭曲向列电池中的多重应用方面优于使用 4-n-烷基苯基 4-n-烷氧基苯甲酸酯或 4-n-al-koxyphenyl trans-4-n 的等效混合物-烷基环己烷-1-羧酸盐。