Metallo-Polymerization/-Cyclization of a C16-Bridged Di-Terpyridine Ligand and Iron(II) Ions
- Andres, Philip R.; Schubert, Ulrich S.
- Abstract:
- The coordinative polymerization/cyclization of a flexible monodisperse di-terpyridine ligand with iron(II) chloride is reported. Matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) investigations showed the preferred formation of a [2รพ2] macrocycle, but also larger aggregates (cycles or linear oligomers) with up to 10 monomer units were found. Because of its C16-spacer, the solubility is sufficient for performing viscosity experiments in CHCl3/MeOH solution. A viscosity titration revealed a maximum in viscosity at the 1-to-1 ratio of iron(II) ions to di-terpyridine-ligands, which indicates the formation of extended oligomers, polymers, catenanes and/or cycles at that ratio.
- Year:
- 2004
- Type of Publication:
- Article
- Journal:
- Macromolecular Rapid Communications
- Volume:
- 25
- Pages:
- 1371 - 1375