Liquid crystal properties of certain 4-alkoxy-N-(fluoren-2-ylmethylene)- and -(2-naphthylmethylene)-anilines
Abstract
The liquid crystal transition temperatures of 124-alkoxy-N-(fluoren-2-ylmethylene)anilines are reported. Differences in liquid crystal thermal stability between pairs of related series of azomethines of fluorene 9-oxofluorene, 9,10-dihydrophenanthrene, and biphenyl are compared. Only one member of the 4: alkoxy-N-(2-naphthylmethylene)anilines shows liquid crystal behaviour.
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