Ketones-Nematogens with Moderate Negative Dielectric Anisotropy and High Clearing Points
作者:Maged A. Osman、T. Huynh-ba
DOI:10.1080/00268948408072502
日期:1984.12
with their chemical structure. The l-(4-alkanoylphenyl)-4-trans-alkylcyclohexanes as well as the l-(4-alkanoylphenyl)-4-(rani-alkan-oylcyclohexanes show nematic phases. In contrast to laterally substituted compounds, these ketones have clearing points which are higher than those of the corresponding hydrocarbons. Another advantage of these nematogens is the ease of synthesis.
摘要 合成了刚性核含有苯基和环己基单元的各向异性酮。羰基结合在末端取代基或核心单元之间的连接中。这些酮的介晶行为被描述并与其化学结构相关。L-(4-烷酰基苯基)-4-反式烷基环己烷以及 L-(4-烷酰基苯基)-4-(rani-烷酰基环己烷显示向列相。与横向取代的化合物相比,这些酮具有清除点高于相应的碳氢化合物。这些线虫剂的另一个优点是易于合成。