1C14 有機金属鎖体のディスコティック液晶(53) : 水素結合ネットワークを用いた新規なディスコティック液晶の開発とその超分子構造の決定。

概要

論文の詳細を見る
We investigated the critical molecular structure changing from columnar to lamellar mesophase in the bis(diphenylglyoximato)-nickel(II)-based complexes. When the number of the long chains surrounding the core complex part was reduced from eight to four, the mesophase changes its structure from a discotic columnar D_<hd> to a novel discotic lamellar D_<L.rec>(P2_12_1). When the length of four chains at the m-positions was fixed and the remained four chains at the m-positions were gradually made shorter, each of the complexes shows a discotic columnar D_<ho> mesophase. Surprisingly, even when the substituents at m-positions is a methoxy or methyl group, it still gives the columnar D_<ho> mesophase. When the substituent at m-position was OH group, it at last shows another novel discotic lamellar DL.rec(P2_11) mesophase. Hence, the critical molecular structure changing from columnar to lamellar mesophase occurs at between methoxy and hydroxy groups at the m-position.
日本液晶学会の論文
1996-09-30