299936-27-9Relevant academic research and scientific papers
Synthesis and mesomorphic properties of new columnar liquid crystal containing 1,3,5-triiminebenzene with pendant 1,3,4-thiadiazole Group
Al-Malki, Mustafa K.S.,Hameed, Ayad S.,Al-Dujaili, Ammar H.
, p. 34 - 42 (2014)
A novel discotic liquid crystal series based on 1,3,5-benzenetrisazomethine derivatives with three pendant 2-amino-5-(4′-n-alkoxy)phenyl-1,3,4- thiadiazole has been synthesized, which is the first columnar molecules containing 1,3,4-thiadiazole moiety exhibiting a discotic liquid crystal. The molecular structure of compounds was confirmed by FT-IR, 1H-NMR, and mass spectroscopy and elemental analysis. The electron excitation properties of these compounds were investigated by UV-vis absorption spectroscopy. Their liquid crystalline properties were studied by polarizing optical microscopy and differential scanning calorimetry. The formation of a columnar mesophase was found to be dependent on the number of methylene unit in alkoxy side chains.
