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Abstract
Twenty eight 4-n-alkoxy-N-(2-and 2'-halogenobiphenyl-4-ylmethylene)anilines comprising 4, 8, 8, 4, and 4 members derived, respectively, from 2-fluoro-, 2'-fluoro-, 2'-chloro-, 2'-bromo-, and 2'-iodo-biphenyl-4-carbaldehyde, together with six 4-p-n-al-koxy-2'-fluorobenzylideneaminobiphenyls have been prepared. The liquid crystal behaviour of these compounds has been compared with analogous azomethines with reversed CH=N linkage, previously reported.