TY - JOUR
T1 - Metallo-polymerization/-cyclization of a C16-bridged D1-terpyridine ligand and iron(II) ions
AU - Andres, P.R.
AU - Schubert, U.S.
PY - 2004
Y1 - 2004
N2 - 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 [2 + 2] 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.
AB - 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 [2 + 2] 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.
U2 - 10.1002/marc.200400177
DO - 10.1002/marc.200400177
M3 - Article
SN - 1022-1336
VL - 25
SP - 1371
EP - 1375
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 15
ER -