Fiche publication
Date publication
juin 2008
Auteurs
Membres identifiés du Cancéropôle Est :
Pr LEHN Jean-Marie
Tous les auteurs :
Stefankiewicz AR, Walesa M, Jankowski P, Ciesielski A, Patroniak V, Kubicki M, Hnatejko Z, Harrowfield JM, Lehn JM
Résumé
The dimethylquaterpyridine ligand L1 reacts with Cu-I and Ag-I to give dinuclear complexes of "helicate" form, in which the metals are in an approximate tetrahedral coordination, whereas reactions with Co-II and Zn-II provide mononuclear complexes, in which the metals are apparently six-coordinate with markedly distorted octahedral coordination, and the ligand retains a helical conformation. Oxidation of the methyl substituents of L1 into carboxylic acid groups, followed by esterification, gives ligand L2, which also forms a dinuclear Cu-I helicate and a mononuclear Coll complex; one of the ester groups appears to be involved in complexation in the latter. All the complexes were characterised by single-crystal X-ray structure determinations. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).
Référence
Eur J Inorg Chem. 2008 Jun;18:2910-20
