Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.250, 31-39, 1994
Synthesis and Optical-Properties of New Ferroelectric Liquid-Crystals - (S)-(+)-Methyl-2-Butyl-(4’-(4-N-Alkoxybenzoyloxy)Benzilidene)-4-Aminobenzoate and (S)-(+)-Methyl-2-Butyl-(4’-(4-N-Alkoxycinnamoyloxy)Benzilidene)-4-Aminobenzoate
Four members of (S)-(+)-Methyl-2-butyl-[4’-(4-n-alkoxybenzoyloxy)benzilidene]-4- aminobenzoate (Series I) and four members of (S)-(+)-Methyl-2-butyl-[4’-(4-n-alkoxycinnamoyloxy)benzilidene]- 4-aminobenzoate (Series II) were synthesized. Both series show cholesteric, smectic A and smectic C* phases. The phase transition behavior is described and measurements of the optical tilt angle and helix pitch in the smectic C* phase are presented.