Metallo-polymerization/-cyclization of a C16-bridged di-terpyridine ligand and iron(II) ions

被引：20

作者：

Andres, PR

Schubert, US

机构：

[1] Eindhoven Univ Technol, Lab Macromol Chem & Nanosci, NL-5600 MB Eindhoven, Netherlands

[2] Univ Munich, Ctr Nanosci, D-80333 Munich, Germany

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 15期

关键词：

addition polymerization; macrocycles; terpyridine telechelic; transition metal chemistry; viscosity;

D O I：

10.1002/marc.200400177

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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 C-16-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(n) ions to di-terpyridine-ligands, which indicates the formation of extended oligomers, polymers, catenanes and/or cycles at that ratio.

引用

页码：1371 / 1375

页数：5

共 32 条

[1] Formation of metallo-polymers and -macrocycles by complexation of alkyl-linked di-terpyridines with iron(II) ions [J].