X-ray Difraction and Polymorphism of Smectic Liqid Crsystals. II. D and E Modifications

Abstract

Abstract The X-ray patterns of two new smectic modifications (smectic D and Smectic E) are investigated. The D-modification is potically isotropic. A cubic structure is presumed. In the E-modification the pattern exhibits three sharp outer rings besides the inner irng, which points to a higher order compared withthe A, B and C-Phases.