Mesomorphism, Isomerization, and Dynamics in a New Series of Pyramidic Liquid Crystals
作者:Herbert Zimmermann、Victoria Bader、Raphy Poupko、Ellen J. Wachtel、Zeev Luz
DOI:10.1021/ja020889e
日期:2002.12.1
separate investigation. When the alkanoyloxy side chains are sufficiently long both isomers are mesogenic (n >or= 4 for the saddle and n >or= 5 for the crown), exhibiting hexagonal columnar mesophases. The structure, dynamics, and mesomorphic properties of these mesophase were investigated by X-ray diffraction, optical polarizing microscopy, differential scanning calorimetry, and NMR. The lattice parameters