1973 Volume 46 Issue 10 Pages 3142-3143
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 p-n-alkylnitrosobenzenes and p-n-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 been considered to consist of two isomers synthesized simultaneously, is appreciably wide.
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