1620212-78-3Relevant articles and documents
Impact of substitution pattern and chain length on the thermotropic properties of alkoxy-substituted triphenyl-tristriazolotriazines
Detert, Heiner,Glang, Stefan,Haspel, Tobias,Lehmann, Matthias,Limbach, Daniel,Rieth, Thorsten,Schupp, Niklas,Sperner, Marcel,Tober, Natalie,Wicker, Philipp
supporting information, (2021/06/14)
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-shap
Tetrakis(oxadiazolylphenyl)pyrazines: New St. Andrew′s Cross-Shaped Liquid Crystals
Detert, Heiner,Limbach, Daniel,Marszalek, Tomasz,Pisula, Wojciech,R?der, Nico
, p. 463 - 469 (2019/01/09)
π-Conjugated molecules with the shape of St. Andrew′s cross have been synthesized via fourfold Huisgen reaction. Four 2,5-diaryl-1,3,4-oxadiazol arms are attached to a central pyrazine nucleus. These fluorescent stars, when decorated with a rim of eight alkoxy side chains are discotic liquid crystals. Depending on the substitution pattern, the width of the liquid phase varies within a broad range of 25 °C to 250 °C. In their liquid crystalline phase, the molecules assemble in a typical hexagonal columnar supramolecular arrangement.