Liquid Crystalline Behaviours of the Complexes Based on 1,3,4-Oxadiazole Derivative and Benzoic Acid
作者:Chengxiao Zhao、Haitao Wang、Xia Ran、Binglian Bai、Yan Zhang、Min Li
DOI:10.1002/cjoc.201100276
日期:2012.4
A non‐liquid crystal compound (4‐POXD‐6) containing the 1,3,4‐oxadiazole group and pyridyl (py) group was synthesized. And a series of supramolecular mesogenic complexes were obtained by mixing 4‐POXD‐6 and 4‐alkoxybenzoic acids (Cn, n=6, 8, 12). The liquid crystalline properties of 4‐POXD‐6/Cn (n=6, 8, 12) were investigated by means of differential scanning calorimetry, polarized optical microscopy
合成了包含1,3,4-恶二唑基团和吡啶基(py)基团的非液晶化合物(4-POXD-6)。通过混合4-POXD-6和4-烷氧基苯甲酸(C n,n = 6,8,12)获得了一系列超分子介晶复合物。通过差示扫描量热法,偏振光学显微镜和广角X射线衍射研究了4-POXD-6 / C n(n = 6,8,12)的液晶性质。发现4‐POXD‐6 / C n(6,8)显示单向性向列相和近晶A相,而4-POXD-6 / C12在加热过程中显示SmX相,在冷却过程中显示SmA相。可变温度FTIR光谱研究表明,在结晶相和液晶相中均存在氢键。