Troponoid Twin Dimers with Four Rings: Synthesis and Mesomorphic Properties
摘要:
Twin-type troponoids with two benzene and two tropone rings were prepared, They showed nematic phases when the inner and the side chains are short. while smectic A phases appear when the inner chain becomes long. Twins with long side chains and a short inner chain had smectic C phases. From, X-ray diffraction study, molecular packing models are proposed. The Corresponding benzenoid twins showed nematic and smectic C phases with higher thermal stability than the troponoids.
Troponoid Twin Dimers with Four Rings: Synthesis and Mesomorphic Properties
作者:Akira Mori、Manabu Takemoto、Seiji Ujiie
DOI:10.1080/15421400490434982
日期:2004.1
Twin-type troponoids with two benzene and two tropone rings were prepared, They showed nematic phases when the inner and the side chains are short. while smectic A phases appear when the inner chain becomes long. Twins with long side chains and a short inner chain had smectic C phases. From, X-ray diffraction study, molecular packing models are proposed. The Corresponding benzenoid twins showed nematic and smectic C phases with higher thermal stability than the troponoids.