Di- or Trinuclear 3d-4f Schiff Base Complexes: The Role of Anions

被引：79

作者：

Costes, Jean-Pierre ^{[1
,2
]}

Donnadieu, Bruno ^{[1
,2
]}

Gheorghe, Ruxandra ^{[1
,2
]}

Novitchi, Ghenadie ^{[3
]}

Tuchagues, Jean-Pierre ^{[1
,2
]}

Vendier, Laure ^{[1
,2
]}

机构：

[1] Univ Toulouse 3, Chim Coordinat Lab, CNRS, UPR 8241, F-31077 Toulouse, France

[2] Inst Natl Polytech Toulouse, F-31077 Toulouse, France

[3] Moldavian Acad Sci, Inst Chem, Kishinev 2028, Moldova

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2008年 / 33期

关键词：

Anions; Schiff bases; Transition metals; Lanthanides; Heterometallic complexes;

D O I：

10.1002/ejic.200800750

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We demonstrate through structural, spectroscopic, and magnetic studies that the main factors governing the nuclearity of M-Gd (M = Cu, Nil complexes derived from compartmental Schiff base ligands are the different affinities of the lanthanide ions for the potential ligands and anions present in the reaction medium. In the eight examples studied, there is competition between the tetradentate O(2)O(2) coordination site of the polydentate ligand and the anionic entities brought by the gadolinium. salts. The strong affinity of nitrato anions for lanthanides yields dinuclear complexes and prevents formation of trinuclear entities, whereas the use of poorly coordinating anions such as triflates may yield either dinuclear or trinuclear complexes, depending on the 3d/4f ratio. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

引用

页码：5235 / 5244

页数：10

共 46 条

[1] Synthesis, structures, and magnetic properties of tri- and dinuclear copper(II)-gadolinium(III) complexes of linear oligooxime ligands [J].