トリフェニレンをコアにもつディスコティック液晶の複雑な三次元構造

抄録

Triphenylene has been the most representative discotic mesogen. In particular, hexaalkoxytriphenylene has been used for designing many columnar liquid crystalline (LC) materials. We developed a new triphenylene-based mesogen having six carboxylic ester groups. We found that this mesogen, when modified with paraffinic side chains, can self-assemble to form a hexagonal columnar assembly with a wide-range 2D lattice correlation. Furthermore, by virtue of the strong intercolumnar dipole–dipole interaction, the LC triphenylenes spontaneously align homeotropically on a wide variety of solid substrates. Recently, we found that the LC triphenylenes, when bearing certain ionic functionality at the terminal of each paraffinic side chain, assemble into an unprecedented complex three-dimensional architecture.