Design of thiacalixarene linked triphenylene based room temperature columnar LCs with self-assembly and dielectric property: Impact of flexibility on molecular systems
作者:Avdhesh Patel、Vinay S. Sharma、Venkata Ganga Rao、V.A. Rana、Anuj S. Sharma、Pranav S. Shrivastav
DOI:10.1016/j.molliq.2022.120261
日期:2022.11
New thiacalixarene based bi-substituted triphenylene derivatives exhibiting columnar hexagonal phase have been designed and synthesized. The mesophase study of newly synthesized compounds was investigated by using optical polarising microscopy, differential scanning calorimetry, thermal gravimetric analysis and further confirmed by X-ray diffraction study. The target compounds showed stabilized columnar
已经设计并合成了具有柱状六方相的新型噻杯芳烃基双取代苯并苯衍生物。通过使用光学偏振显微镜、差示扫描量热法、热重分析研究新合成化合物的中间相研究,并通过 X 射线衍射研究进一步证实。目标化合物呈稳定的柱状六方相,在室温下自组装,具有对映性质。这些基于苯并苯的化合物的分子结构的确认是通过不同的光谱技术实现的。为了建立结构-性质关系,制备了四种基于噻杯芳烃和母体苯并苯并连接溴代烷基链的超分子材料。这些超分子液晶材料在 20°C 至 50°C 的温度下,在 20 Hz-2 MHz 的频率范围内表现出介电行为。此外,还研究了两种选定导数在温度和频率方面的复数和阻抗行为。