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Updated: Mar 11, 2026

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
Chirality Synchronization of Hydrogen-Bonded Complexes of Achiral N-Heterocycles
Jens Buchs1, Laura Vogel1, Dietmar Janietz1
1Fraunhofer Institute for Applied Polymer Research, Geiselbergstrasse 69, 14476, Potsdam-Golm, Germany.
Abstract:
2,4-Diamino-6-phenyl-1,3,5-triazines carrying a single oligo(ethylene oxide) (EO) chain form an optically isotropic mesophase composed of a conglomerate of macroscopic chiral domains with opposite sense of chirality even though the constituent molecules are achiral. This mesophase was proposed to result from the helical packing of hydrogen-bonded triazine aggregates, providing long-range chirality synchronization. The results provide first evidence for macroscopic achiral symmetry breaking upon conglomerate formation in an amorphous isotropic phase formed by hydrogen-bonded associates of simple N-heterocycles that are related to prebiotic molecules.
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