Macrocyclic and open-chain ligands with the redox switchable trithiadiazapentalene unit: synthesis, structures and complexation phenomena

Autor: Wilhelm Seichter, Heinz Graubaum, Melinda Wüst, Karsten Gloe, Torsten Rambusch
Rok vydání: 2001
Předmět:
Zdroj: Coordination Chemistry Reviews. 222:103-126
ISSN: 0010-8545
Popis: This review focuses on synthesis, structure and binding properties of crown compounds and their open-chain analogues containing a trithiadiazapentalene building block. This heterocyclic unit favours in particular the complexation and solvent extraction of the soft transition metal ions Ag(I), Pd(II), Hg(II) and Au(III). The redox active system trithiadiazapentalene/trithiotriuret introduced into a crown ring allows the control of Ag(I) and Hg(II) phase transfer in solvent extraction experiments. Crystal structures of metal complexes with these pentaleno crown compounds show significant differences of both SS bond lengths of the trithiadiazapentalene unit and package arrangements in the cell.
Databáze: OpenAIRE