2A02 有機金属錯体のディスコティック液晶 (75) : 8つのジアルコキシフェノキシ基を付与した新規テトラピラジノポルフィラジン系銅錯体 (II) の合成とその液晶性(2004年日本液晶学会討論会)

概要

論文の詳細を見る
We previously synthesized the octakisdialkoxyphenoxy-substituted phthalocyaninato copper(II) complexes 1 exhibiting seven different mesophases. In this study, we have successfully synthesized novel discotic liquid crystals of the octakisdialkoxyphenoxy-substituted tetrapyrazinophorpyrazinato copper(II) complexes 2. The molecular structural difference between 1 and 2 is very small only on the number of nitrogen atoms in the core. However, the complexes 2 exhibit only one mesophase in contrast to the previous complexes 1. The mesophase of the complexes 2 could be assigned as a novel pseudo-hexagonal columnar phase Col_<rh>(C2/m). Very interestingly, each of the complexes 2 changes color of the mesophase from purple to green with elevating temperature.
日本液晶学会の論文
2004-09-26