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Pathway-directed recyclable chirality inversion of coordinated supramolecular polymers. | LitMetric

Pathway-directed recyclable chirality inversion of coordinated supramolecular polymers.

Nat Commun

School of Chemical Science and Engineering, Advanced Research Institute, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai, 200092, P. R. China.

Published: November 2024

AI Article Synopsis

Article Abstract

It remains challenging to elucidate the fundamental mechanisms behind the dynamic chirality inversion of supramolecular assemblies with pathway complexity. Herein, metal coordination driven assembly systems based on pyridyl-conjugated cholesterol (PVPCC) and metal ions (Ag or Al) are established to demonstrate pathway-directed, recyclable chirality inversion and assembly polymorphism. In the Ag(I)/PVPCC system, a competitive pathway leads Ag-Complex to form either kinetically controlled supramolecular polymer (Ag-SP I) or thermodynamically favored Ag-SP II, accompanied by reversible chiroptical inversion. Conversely, the Al(III)/PVPCC system displays a solvent-assisted consecutive pathway: the Al-Complex initially forms ethanol-containing Al-SP II, and subsequently converts into ethanol-free Al-SP I with opposite chiroptical performance upon thermal treatment. Moreover, stable chirality inversion in the solid state enables potential dynamic circularly polarized luminescence encryption when Ag(I)/PVPCC is co-assembled with thioflavin T. These findings provide the guidance for the dynamic modulation of chirality functionality in supramolecular materials for applications in information processing, data encryption, and chiral spintronics.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11538330PMC
http://dx.doi.org/10.1038/s41467-024-53928-5DOI Listing

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