Preparation of New Bis(8-aminoquinoline) Ligands and Comparison with Bis(8-hydroxyquinoline) Ligands on Their Ability to Chelate CuII and ZnII

被引：34

作者：

Deraeve, Celine ^{[1
]}

Maraval, Alexandrine ^{[1
]}

Vendier, Laure ^{[1
]}

Faugeroux, Vanessa ^{[1
]}

Pitie, Marguerite ^{[1
]}

Meunier, Bernard ^{[1
]}

机构：

[1] CNRS, Chim Coordinat Lab, F-31077 Toulouse 4, France

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2008年 / 36期

关键词：

Copper; Zinc; Chelates; N ligands;

D O I：

10.1002/ejic.200800924

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

New bis(8-aminoquinoline) ligands linked on the C2 carbon atom of both quinolines have been prepared. When the linker includes a one-atom amino group, the corresponding compound is an excellent chelator of Cu-II ions and forms a mononuclear species with high metal ion selectivity relative to Zn-II chelation. This selectivity for Cu-II ions was not observed for a bis(8-hydroxyquinoline) analogue. The chelating properties of these ligands are compared to those of the bis(8-aminoquinoline) ligands with different linkers between their N8 nitrogen atoms. The N8-linked bis(8-aminoquinoline) ligands have a higher affinity for Cu-II when the linker includes a three-atom unit or when the linker is linked directly through the N8 atom. Other ligands, including that with a dimethylamino linker on C2, are less efficient and seem to chelate Cu-II and Zn-II with an affinity that is similar to that for dipicolylamine. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

引用

页码：5622 / 5631

页数：10