Synthesis of doubly functionalized bis-tridentate ligands as building blocks for extended metallo-supramolecular assemblies and polymers

Autor: Christian H. Weidl, Jean-Marie Lehn, Ulrich S. Schubert
Rok vydání: 1999
Předmět:
Zdroj: Designed Monomers and Polymers. 2:1-17
ISSN: 1568-5551
DOI: 10.1163/156855599x00250
Popis: Doubly functionalized 4,6-bis(6-(2,2'-bipyridyl))pyrimidine ligands based on pyridine and pyrimidine units were synthesized starting from a commercially available nicotinic acid derivative using Stille-type carbon_carbon bond-forming reactions. The resulting hydroxy-terminated ligand, functionalized at the terminal pyridines, opens new avenues for the construction of extended metallo-supramolecular assemblies and polymers with novel material properties. Recent investigations of the synthesis and properties of the corresponding unsubstituted ligands showed the self-assembly of these ligands in the presence of metal ions such as cobalt(II) or zinc(II) to highly ordered tetranuclear [2 x 2]-grid-like architectures with novel magnetic and redox properties.
Databáze: OpenAIRE
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