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Chem Commun (Camb). 2013 Mar 14;49(21):2109-11. doi: 10.1039/c2cc37249e. Epub 2013 Jan 16.

Fluorescent hydrogels formed by CH-π and π-π interactions as the main driving forces: an approach toward understanding the relationship between fluorescence and structure.

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  • 1Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, Korea.


Amide-linked tripyridine derivatives 1, with a para-substituent, and 2, with a meta-substituent, were gelated in water or water-DMSO. The gelation capabilities of 1 and 2 were attributed to the cooperative effects of mainly CH-π and π-π stacking or strong intermolecular hydrogen bonding interactions between the amide groups. The fluorescence properties of gels 1 and 2 were dependent on the binding strength of the π-π stacking.

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