Magnetic properties of five planar defect dicubanes of [Ln4III(μ3-OH)2(L)4(HL)2]•2THF (Ln = Gd, Tb, Dy, Ho and Er)

被引：28

作者：

Mondal, Kartik Chandra ^{[1
]}

Kostakis, George E. ^{[1
]}

Lan, Yanhua ^{[2
]}

Powell, Annie K. ^{[1
,2
]}

机构：

[1] Karlsruhe Inst Technol, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany

[2] Karlsruhe Inst Technol, Inst Inorgan Chem, D-76131 Karlsruhe, Germany

来源：

POLYHEDRON | 2013年 / 66卷

关键词：

Lanthanides; Magnetism; Single Molecule Magnet; Schiff base; SINGLE-MOLECULE-MAGNET; LANTHANIDE COMPLEXES; ANISOTROPY; CLUSTERS; BEHAVIOR; IONS;

D O I：

10.1016/j.poly.2013.05.016

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of five isostructural tetranuclear defect dicubane, or butterfly, topology 4f coordination clusters of formula [Ln(4)(III)(mu(3)-OH)(2)(L)(4)(HL)(2)]center dot 2THF, [H2L = (E)-2-(2-hydroxy-3-methoxybenzylideneamino)phenol; Ln = Gd(1), Tb(2), Dy(3), Ho(4) and Er(5)) has been synthesized and characterized. The highly anisotropic Dy-4 and Ho-4 complexes clearly show intramolecular ferromagnetic coupling which arise from dominant intramolecular dipolar-dipolar interactions rather than any significant superexchange effects. Furthermore, the Dy-4 complex shows Single Molecule Magnet (SMM) behavior. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：268 / 273

页数：6

共 44 条

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