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

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• 作者：Oxana Kotova ; Ronan Daly ; Cid谩lia M. G. dos Santos ; Paul E. Kruger ; John J. Boland ; Thorfinnur Gunnlaugsson
• 刊名：Inorganic Chemistry
• 出版年：2015
• 出版时间：August 17, 2015
• 年：2015
• 卷：54
• 期：16
• 页码：7735-7741
• 全文大小：471K
• ISSN：1520-510X

文摘

The tripodal terpyridine ligand, L, forms 1D helical supramolecular polymers/gels in H₂O鈥揅H₃OH solution mediated through hydrogen bonding and 蟺鈥撓€ 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.