An investigation into lanthanide-lanthanide magnetic interactions in a series of [Ln2(mdeaH2)2(piv)6] dimers

被引：45

作者：

Abbas, Ghulam ^{[1
]}

Lan, Yanhua ^{[1
]}

Kostakis, George ^{[1
]}

Anson, Christopher E. ^{[1
]}

Powell, Annie K. ^{[1
]}

机构：

[1] Univ Karlsruhe, Inst Anorgan Chem, D-76133 Karlsruhe, Germany

来源：

INORGANICA CHIMICA ACTA | 2008年 / 361卷 / 12-13期

关键词：

lanthanide complexes; molecular magnetism; x-ray structures;

D O I：

10.1016/j.ica.2008.03.024

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of six isostructural lanthanide dimers of general formula [Ln(2)(mdeaH(2))(2)(piv)(6)], where mdeaH(2) is N-methyldiethanolamine, piv is pivalate, and Ln = La, Ce, Pr, Nd, Sm, and Gd, has been surveyed to gauge the nature of the magnetic interactions between the lanthanide centres. Single-crystal X-ray structure analyses indicate that the lanthanides are connected by syn, syn-carboxylate bridges. It was found from an analysis of their bulk magnetic susceptibilities as a function of temperature that this type of bridge mediates vanishingly small magnetic interactions. This finding is important in the context of developing synthetic strategies for the preparation of new molecular based magnetic materials. (c) 2008 Elsevier B. V. All rights reserved.

引用

页码：3494 / 3499

页数：6

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