Premium
Supramolecular Columnar Liquid Crystals Formed by Hydrogen Bonding between a Clicked Star‐Shaped s ‐Triazine and Benzoic Acids
Author(s) -
Feringán Beatriz,
Romero Pilar,
Serrano José Luis,
Giménez Raquel,
Sierra Teresa
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201500477
Subject(s) - triazine , supramolecular chemistry , hydrogen bond , star (game theory) , benzoic acid , materials science , crystallography , chemistry , photochemistry , molecule , polymer chemistry , organic chemistry , physics , crystal structure , astrophysics
A star‐shaped tris(triazolyl)triazine is shown to establish hydrogen‐bond interactions with polycatenar benzoic acids. The formation of hydrogen‐bonded triazine/acid complexes has been demonstrated both in solution and in bulk by different techniques. The complexes, mainly formed by nonmesogenic components, all show enantiotropic hexagonal columnar mesomorphism, which relies on the formation of hydrogen‐bond complexes in a triazine/acid ratio of 1:3. This approach combines the straightforward synthesis of a nonmesomorphic triazine core by click chemistry, and the preparation of a supramolecular complex, providing a much more convenient route than covalent synthesis to modify the periphery of triazine discotics and thus to modulate their functionality.