In order to obtain low-temperature mesomorphic materials, thirty-two p-alkyl-p′-alkoxy-azo- and-azoxybenzenes have been synthesized. The former have been made by the condensation of pn-alkylnitrosobenzenes and pn-alkoxyanilines, and the latter, by the oxidation of the former. Twenty-nine of the compounds show nematic behavior. In the majority of cases, the nematic temperature range of the azoxy compounds, which have ...
