Impact of Substitution Pattern and Chain Length on the Thermotropic Properties of Alkoxy-Substituted Triphenyl-Tristriazolotriazines
作者:Thorsten Rieth、Natalie Tober、Daniel Limbach、Tobias Haspel、Marcel Sperner、Niklas Schupp、Philipp Wicker、Stefan Glang、Matthias Lehmann、Heiner Detert
DOI:10.3390/molecules25235761
日期:——
Tristriazolotriazines (TTTs) with a threefold alkoxyphenyl substitution were prepared and studied by DSC, polarized optical microscopy (POM) and X-ray scattering. Six pentyloxy chains are sufficient to induce liquid-crystalline behavior in these star-shaped compounds. Thermotropic properties of TTTs with varying substitution patterns and a periphery of linear chains of different lengths, branching
通过 DSC、偏光光学显微镜 (POM) 和 X 射线散射制备并研究了具有三重烷氧基苯基取代的三三唑并三嗪 (TTT)。六个戊氧基链足以在这些星形化合物中诱导液晶行为。比较了具有不同取代模式和不同长度的线性链外围、链中分支和燕尾的 TTT 的热致性质。一般来说,这些盘显示出广泛且稳定的热致中间相,切向 TTT 优于径向异构体。研究了烷基链的数量、位置、长度和结构的构效关系。