Dodecanuclear [Cu6IIGd6III] Nanoclusters as Magnetic Refrigerants

被引：68

作者：

Dinca, Alina S. ^{[3
]}

Ghirri, Alberto ^{[1
,2
]}

Madalan, Augustin M. ^{[3
]}

Affronte, Marco ^{[1
,2
]}

Andruh, Marius ^{[3
]}

机构：

[1] Univ Modena & Reggio Emilia, CNR, Inst NanoSci S3, I-41100 Modena, Italy

[2] Univ Modena & Reggio Emilia, Dipartimento Fis, I-41100 Modena, Italy

[3] Univ Bucharest, Inorgan Chem Lab, Fac Chem, Bucharest 020464, Romania

来源：

INORGANIC CHEMISTRY | 2012年 / 51卷 / 07期

关键词：

HETEROBINUCLEAR COMPLEX; CRYSTAL-STRUCTURE; GD COMPLEX;

D O I：

10.1021/ic3001762

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel dodecanuclear complex, [{(HL)(L)(DMF)(CuGdIII)-Gd-II(DMF)(H2O)}(6)]center dot 6DMF (1; DMF = N,N-dimethylformamide), has been obtained using the ligand resulting from the condensation of 3-formylsalicylic acid with hydroxylamine (H3L). The exchange interaction between the phenoxo-bridged Cu-II and Gd-III ions is weak ferromagnetic (J = +1.01 cm(-1)). The combination of a high-spin ground state with small anisotropy leads to a significant magnetocaloric effect [-Delta S-m(0-7 T) = 23.5 J K g(-1) K-1 at similar to 2 K].

引用

页码：3935 / 3937

页数：3

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