New Ferroelectric Liquid Crystal Materials: (+)-4-(2-Methylbutoxycarbonyl)phenyl 4-(5-Alkyl-1,3-dioxan-2-yl)benzoate

Article abstract of DOI:10.1246/bcsj.61.431

(+)-4-(2-Methylbutoxycarbonyl)phenyl 4-(5-alkyl-1,3-dioxan-2-yl)benzoate (12), (+)-4-(2-methylbutoxy)phenyl 4-(5-alkyl-1,3-dioxan-2-yl)benzoate (11) and the corresponding 1,3-oxathiane (13, 14) and 1,3-dithiane compounds (15, 16) were synthesized.The mesomorphic behaviors of these compounds were measured.Compounds 12 exhibited the ferroelectric liquid-crystal behavior (R= n-C11H23; -4 SmC^* 94 deg C), while the corresponding 1,3-oxathiane (13, 14) and 1,3-dithiane compounds (15, 16) did not exhibit such behavior.Therefore, 1,3-dioxane compounds are more favorable for transition of SmA to SmC^* than the 1,3-oxathiane or 1,3-dithiane analogs.