Dimers and chains of {3d-4f} single molecule magnets constructed from heterobimetallic tectons

被引：114

作者：

Pasatoiu, Traian D. ^{[1
]}

Etienne, Mael ^{[2
,3
]}

Madalan, Augustin M. ^{[1
]}

Andruh, Marius ^{[1
]}

Sessoli, Roberta ^{[2
,3
]}

机构：

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

[2] Univ Florence, Dipartimento Chim, Lab Mol Magnetism, I-50019 Florence, Italy

[3] Univ Florence, UdR INSTM Firenze, I-50019 Florence, Italy

来源：

DALTON TRANSACTIONS | 2010年 / 39卷 / 20期

关键词：

GROUND-STATE; TB-III; COMPLEXES; GD; DY; BEHAVIOR; CU; MAGNETIZATION; LN; ARCHITECTURES;

D O I：

10.1039/b925425k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A tetranuclear complex and a 1-D coordination polymer with a ladder-like topology have been obtained by connecting [(NiDyI)-Dy-II-I-II] nodes with dicarboxylato ligands: [Ni-2(valpn)(2)Dy-2(III)(pdca)(2)(NO3)(H2O)(6)](NO3)center dot 4H(2)O 1, and(infinity) (1)[Ni-2(H2O)(2)(valpn)(2)Dy-2(tfa)(3)]center dot 4CH(3)CN 2 (valpn(2-) = the dianion of the Schiff base resulting from reacting o-vanillin with 1,3-propanediamine; pdca(2-) = the dianion of 2,6-pyridinedicarboxylic acid; tfa(2-) = the dianion of the terephthalic acid). The magnetic measurements show a ferromagnetic interaction between Ni-II and Dy-III, and that both compounds behave like SMM with strong tunnelling. The barrier of 2 (17.4 K) is higher than that of 1 (13.6 K).

引用

页码：4802 / 4808

页数：7

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