Herein, we report the syntheses and characterization of liquid-crystalline (LC) 5,6,13,14-tetraazapentacene (BTANC) derivatives. A LC BTANC derivative self-organized to form a layered smectic A LC phase over a wide temperature range, including room temperature. Cyclic voltammetry of the LC BTANC derivate showed a reversible two-step and two-electron transfer in the reduction region. To the best of our knowledge, this is the first report on the derivatives of LC BTANC.
A new liquid crystalline derivative of dibenzotetraaza[14]annulene: synthesis, characterization and the preliminary evaluation of mesomorphic properties
作者:Jarosław Grolik、Lesław Sieroń、Julita Eilmes
DOI:10.1016/j.tetlet.2006.09.134
日期:2006.11
A new dibenzotetraaza[14]annulene ligand has been synthesized that contains two 2-hydroxybenzoyl and four 3,7-dimethyloctyloxy peripheral substituents. Its mesomorphic textures were observed by means of a polarizing optical microscopy.