Structural investigation of the liquid crystalline phases of three homologues from the nOS5 series (n = 9, 10, 11) by X-ray diffraction

作     者：Deptuch, Aleksandra Sęk, Bartosz Lalik, Sebastian Ossowska-Chruściel, Miroslawa D. Chruściel, Janusz Marzec, Monika 

作者机构：Institute of Nuclear Physics Polish Academy of Sciences Radzikowskiego 152 KrakówPL-31342 Poland Faculty of Physics and Applied Computer Science AGH University of Kraków Reymonta 19 KrakówPL-30059 Poland Institute of Physics Jagiellonian University Lojasiewicza 11 KrakówPL-30348 Poland Institute of Chemistry Siedlce University of Natural Sciences and Humanities 3 Maja 54 SiedlcePL-08110 Poland 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2024年

核心收录：

主　　题：Bone 

摘      要：Polarizing optical microscopy and differential scanning calorimetry are used to determine the phase sequence of three liquid crystalline 4-pentylphenyl-4’-n-alkyloxythiobenzoates with n = 9, 10, 11. The X-ray diffraction method is applied for structural characterization of the liquid crystalline phases. The smectic layer spacing, tilt angle, average distance between the long axes of molecules and correlation length of the short-range order are determined as a function of temperature. For the crystal-like smectic phases with the hexagonal or herring-bone packing, the unit cell parameters are obtained. The presence of the tilted hexagonal phase for n = 10, 11 and tilted herring-bone phase for n = 9, 10 is indicated, although the direction of the tilt cannot be determined. © 2024, CC BY.