Heterometallic 3d-4f coordination polymers: Synthesis, characterization and magnetic properties of 1D zigzag chains containing samarium and terbium

被引：10

作者：

Ion, Adrian E. ^{[1
]}

Spielberg, Eike T. ^{[1
]}

Sorace, Lorenzo ^{[2
]}

Buchholz, Axel ^{[1
]}

Plass, Winfried ^{[1
]}

机构：

[1] Univ Jena, Lehrstuhl Anorgan Chem 2, Inst Anorgan & Analyt Chem, D-07745 Jena, Germany

[2] Univ Florence, Dept Chem, I-50019 Sesto Fiorentino, Italy

来源：

SOLID STATE SCIENCES | 2009年 / 11卷 / 04期

关键词：

Coordination polymer; Copper; Lanthanide; Samarium; Terbium; Magnetic properties; SINGLE-MOLECULE MAGNETS; SCHIFF-BASE LIGANDS; II/GD-III COUPLE; CRYSTAL-STRUCTURE; STRUCTURAL DETERMINATION; TETRANUCLEAR COMPLEXES; INTRINSIC PROPERTY; DINUCLEAR; CU; LANTHANIDE;

D O I：

10.1016/j.solidstatesciences.2008.05.019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of the copper precursor [Cu(MeOsaltn)(H2O)] (H(2)MeOsaltn=N,N'-bis(3-methoxysalicylidene)-1,3-diaminopropane) with Ln(NO3)(3) center dot 6H(2)O (Ln = Sm and Tb) and pyrazine-2,3-dicarboxylic acid (H(2)Pyrdic) results in the formation of 1D zigzag chains with the general formula of [Cu(MeOsaltn)Ln(NO3)(pyrdic)](n) center dot nDMF. X-ray crystal structures reveal that the samarium and terbium compounds are isostructural and crystalize in the orthorhombic space group Pbcn. The chains are composed of heterodinuclear copper-lanthanide building blocks which are linked by the pyrazine-2,3-dicarboxylate bridging units. Temperature-dependent susceptibility measurements indicate antiferromagnetic exchange interactions for the samarium-copper chain whereas for the terbium-copper compound ferromagnetic interactions are observed. (C) 2008 Elsevier Masson SAS. All rights reserved.

引用

页码：766 / 771

页数：6

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