X-ray Analysis of the Optically Isotropic Phase in the Dichirai Liquid Crystal Compound Containing Fluorines and its Homologues

Abstract

The structure in the opticaly isotropic (IsoX) phase which appears in the dichiral liquid crystal compond containing fluorines was investigated in the X-ray diffraction measurements. Diffraction pattern depends on the sample and irradiated conditions, and using x-ray microbeam, in a lmmφ capillary glass tube cell, it was found that the IsoX phase is a cubic phase whose symmetry is Im3m. Moreover, an novel optically anisotropic phase in other homologues and the blue-colored texture will be also discussed.