Phasmids : a new class of liquid crystals

Abstract

Two hexa-alkoxy derivatives (7a and 7b) of terephthal-bis-[4-benzoyloxyaniline] are described. They exhibit two new types of mesophase for which the term phasmidic is proposed: one has an hexagonal 2D lattice and the second an oblique 2D lattice Description de deux derives hexaalcoxy de la terephtal-bis-[benzoyloxy-4-aniline], presentent deux nouveaux types de mesophase. L'une de ces phases possede un reseau bidimensionnel hexagonal, l'autre un reseau bidimensionnel oblique