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

Inorg Chem. 2015 Aug 17;54(16):7735-41. doi: 10.1021/acs.inorgchem.5b00626. Epub 2015 Jul 29.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Gels
  • Ligands
  • Metals, Heavy / chemistry*
  • Pyridines / chemistry*

Substances

  • Gels
  • Ligands
  • Metals, Heavy
  • Pyridines