X-ray diffraction studies of binary mixtures of rod-like and biforked mesogenic molecules

Abstract

Two binary mixtures of a liquid-crystalline biforked molecule with derivatives of the p-terephtaldehyde-bis-alkyl-anilines have been studied. The phase diagrams as determined by differential thermal analysis and optical observations show a continuous miscibility in the nematic and smectic C phases. Information on the molecular conformation of the biforked molecules is derived from X-ray diffraction studies of the binary mixtures.