On the Structure and Chiral Aggregation of Liquid Crystalline Star‐Shaped Triazines H‐Bonded to Benzoic Acids

The ability of a star-shaped tris(triazolyl)triazine derivative to hierarchically build supramolecular chiral columnar organizations through the formation of H-bonded complexes with benzoic acids was studied from a theoretical and experimental point of view. The combined study has been done at three different levels including the study of the structure of the triazine core, the association with benzoic acids in stoichiometry 1:3, and the assembly of 1:3 complexes in helical aggregates. Although the star-shaped triazine core crystallizes in a non-C3 conformation, the C3 -symmetric conformation is theoretically predicted to be more stable and gives rise to a favorable C3 supramolecular 1:3 co…

Self-assembly of Clicked Star-Shaped Triazines into Functional Nanostructures

Two non‐amphiphilic star‐shaped 2,4,6‐tris(1,2,3‐triazol‐4‐yl)‐1,3,5‐triazines showing different behavior in terms of self‐assembly and luminescent properties are described. They aggregate in the liquid phase to form low‐dimensional nanostructures with a variety of morphologies, such as spherical particles, one‐hole hollow spheres, toroids, twisted fibers or helical nanotubes, just by varying the conditions of a straightforward reprecipitation method. Aggregation has an opposite effect concerning the fluorescent properties of the proposed compounds, either causing the enhancement or the quenching of the emission after the self‐assembly. Quantum chemical calculations have been also performed…

Bent-core liquid crystalline cyanostilbenes: fluorescence switching and thermochromism

et al.

Cover Feature: Self-Assembly of Clicked Star-Shaped Triazines into Functional Nanostructures (ChemNanoMat 1/2019)

CCDC 1986850: Experimental Crystal Structure Determination

Related Article: Beatriz Feringán, Jesús Cerdá, Beatriz Diosdado, Juan Aragó, Enrique Ortí, Raquel Giménez, Teresa Sierra|2020|Chem.-Eur.J.|26|15313|doi:10.1002/chem.202001271