抄録
Behaviors and organization of liquid crystalline compounds which have an iminodicarbonyl moiety as the central junction of two mesogenic units in parallel, were investigated by polarized light optical microscopy, differential scanning calorimetry and single crystal- and powder X-ray diffractions. Compound 1a showed nematic phase, and compounds 1c, 1d and 3 showed smectic A phases in which overlapping of alkyl chains between layers and plural layer distances were observed in each smectic phase.