抄録
Anti-ferroelectric(SmCA*) and ferroelectric(SmC*) phases of α-trifluoromethyl-β-methyl-substituted liquid crystalline (LC) molecules, synthesized highly diastereo- and enantioselectively through our chiral titanium complex-catalyzed fluoral-ene reaction, were determined by thermal analysis and electro-optic measurements. Phase transitions were thus found to be critically dependent on the diastereomeric excess for u (Rα,Sβ)-diastereomers of the LC molecules. And the liquid crystalline molecules also critically depend on the enantiomeric purities (% ee) not only for u- but also for l-diastereomers to show eventually an unknown phase in the racemic region of either an u- or l-diastereomer.
