Cross-Linking the Fibers of Supramolecular Gels Formed from a Tripodal Terpyridine Derived Ligand with d‑Block Metal Ions

The tripodal terpyridine ligand, L, forms 1D helical supramolecular polymers/gels in H2O–CH3OH solution mediated through hydrogen bonding and π–π interactions. These gels further cross-link into 3D supramolecular metallogels with a range of metal ions (M) such as Fe­(II), Ni­(II), Cu­(II), Zn­(II),...

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Veröffentlicht in:Inorganic chemistry 2015-08, Vol.54 (16), p.7735-7741
Hauptverfasser: Kotova, Oxana, Daly, Ronan, dos Santos, Cidália M. G, Kruger, Paul E, Boland, John J, Gunnlaugsson, Thorfinnur
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Sprache:eng
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Zusammenfassung:The tripodal terpyridine ligand, L, forms 1D helical supramolecular polymers/gels in H2O–CH3OH solution mediated through hydrogen bonding and π–π interactions. These gels further cross-link into 3D supramolecular metallogels with a range of metal ions (M) such as Fe­(II), Ni­(II), Cu­(II), Zn­(II), and Ru­(III); the cross-linking resulting in the formation of colored or colorless gels. The fibrous morphology of these gels was confirmed using scanning electron microscopy (SEM); while the self-assembly processes between L and M were investigated by absorbance and emission spectroscopy from which their binding constants were determined by using a nonlinear regression analysis.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.5b00626