Discotic Liquid Crystals of Transition Metal Complexes 71 : Dimer Discotic Rectangular Ordered Mesophase in Bis(p-n- alkoxybiphenylbutane-1,3-dionato)copper (II) Complexes

作者：Kazuchika Ohta, Osamu Takenaka, H. Hasebe, Yasue Morizumi, Tetsuya Fujimoto, I. Yamamoto · 发表于：Molecular crystals and liquid crystals · 年份：1991 · DOI：10.1080/00268949108030896 · 被引用次数：19 · 研究领域：Liquid Crystal Research Advancements、Nonlinear Dynamics and Pattern Formation、Plant Reproductive Biology

A novel series of bis(p-n-alkoxybiphenylbutane-1,3-dionato)copper(II) complexes (n-alkoxy = CnH2n+1, O, n = 8 ∼ 12, 16, 18) have been synthesized and characterized. The CnO-Cu complexes for n = 9 ∼ 12, 16, and 18 have a unique dimer discotic rectangular ordered columnar (D10 mesophase. The X-ray diffraction powder pattern of the D10 mesophase of the C16O-Cu complex at 185[ddot]C gave the intradimer distance 5.12 Å, the interdimer distance in the column 9.40 A, and the two-dimensional rectangular lattice constants a = 46.8 Å, b = 16.7 Å. The type of the present D10, mesophase could be assigned as D10 (C2/m).