Terpyridine-functionalized TentaGel microbeads: Synthesis, metal chelation and first sequential complexation
-
Schubert, Ulrich S.; Alexeev, Alexander; Andres, Philip R.
- Abstract:
- The functionalization of polystyrene/poly-
(ethylene glycol) TentaGel1 microbeads (d=20 mm) with
2,2':6',2''-terpyridine units is described resulting in a material
with easily accessible ligands which possess an excellent
affinity for transition metal ions. The subsequent loading
with different metal ions via metal-to-ligand complexation
yielded the corresponding CoII, NiII, FeII, and CuII modified
beads. The isolated materials were investigated in detail
utilizing UV/vis spectroscopy, optical microscopy, atomic
absorption spectroscopy (AAS), scanning electron microscopy
(SEM), and atomic force microscopy (AFM). Moreover,
grafting of free terpyridine moieties via ruthenium(II)/
ruthenium(III)-chemistry onto the beads is demonstrated.
This opens-up new pathways for the selective modification
of such microbeads and the preparation of functional
materials.
- Year:
- 2003
- Type of Publication:
- Article
- Keywords:
- chelating resin; microbeads; supramolecular structures; terpyridine; transition metal chemistry
- Journal:
- Molecular Materials and Engineering
- Volume:
- 288
- Pages:
- 852 – 860