Synthesis and Mesomorphysm of Some New Ferro-Electric Smectic Liquid Crystals

Abstract
In this work, compounds having the general formula: with (X = H, Br, CN, Cl) and (R1 (or/and) R2 = 3-methylhexyl or 2-methyl-butyl, n-alkyl were prepared and their phase transition temperatures and mesomorphic properties determined.