Mesomorphism dependence on central bridges and the efficiency order of the tail group
作者:G. N. Bhola、U. C. Bhoya
DOI:10.1080/15421406.2016.1146937
日期:2016.5.2
ABSTRACT A novel homologous series: RO-C6H4‒CH˭CH‒COO‒C6H4‒CH˭N-C6H3 (CH3)2 of ortho-meta Schiff's bases has been synthesized and studied with a view to understanding and establishing the effects of molecular structure on mesomorphic properties and to provide a source of novel liquid crystalline (LC) materials. The series consists of 13 homologues (C1 to C8, C10, C12, C14, C16 & C18). C1 and C3 homologues
摘要 合成并研究了一个新的同源系列:RO-C6H4-CH˭CH-COO-C6H4-CH˭N-C6H3 (CH3)2 的邻位希夫碱,以了解和建立分子结构的影响介晶特性,并提供新型液晶 (LC) 材料的来源。该系列由 13 个同源物(C1 到 C8、C10、C12、C14、C16 和 C18)组成。C1 和 C3 同系物是非介晶的,C2 和 C4 单向性的,C6 和 C7 单向性的和对映性的,C5 仅是对映性的,C8、C10、C12 是对映性的近向性加线虫的,C14、C16 仅是对映性的。使用配备加热台的光学偏光显微镜测定纹理和转变温度。分析和光谱数据证实了分子结构。平均近晶和向列热稳定性分别为 100.16°C 和 110.83°C。将当前新系列的介晶特性与结构相似的同源系列进行比较。