The synthesis of C3-symmetrical tristriazolotriazines with conjugated arms and lateral alkoxy side chains was performed by a threefold condensation of cyanuric chloride with tetrazoles. Conjugated π segments include phenyl, tolane, and its phenylethynyl-elongated homologue. Disclike and a dendritic molecule have been obtained, and two compounds with a 3,4,5-tris(octyloxy) substitution form broad thermotropic
Tristriazolotriazines: a core for luminescent discotic liquid crystals
作者:Rodrigo Cristiano、Hugo Gallardo、Adailton J. Bortoluzzi、Ivan H. Bechtold、Carlos E. M. Campos、Ricardo L. Longo
DOI:10.1039/b810680k
日期:——
The synthesis and structural, thermal, optical and theoretical characterization of new tris[1,2,4]triazolo[1,3,5]triazines were performed to support their application as liquidcrystals and advanced materials.
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. Thermotropicproperties of TTTs with varying substitution patterns and a periphery of linear chains of different lengths, branching