Nitrate-Bridged "Pseudo-Double-Propeller"-Type Lanthanide(III)-Copper(II) Heterometallic Clusters: Syntheses, Structures, and Magnetic Properties

被引：34

作者：

Chaudhari, Abhijeet K. ^{[1
]}

Joarder, Biplab ^{[1
]}

Riviere, Eric ^{[2
]}

Rogez, Guillaume ^{[3
]}

Ghosh, Sujit K. ^{[1
]}

机构：

[1] Indian Inst Sci Educ & Res IISER, Pune 411021, Maharashtra, India

[2] Univ Paris 11, Equipe Chim Inorgan, ICMMO, CNRS,UMR 8182, F-91405 Orsay, France

[3] Univ Strasbourg, Dept Chim Mat Inorgan, IPCMS CNRS UMR 7504, F-67034 Strasbourg 2, France

来源：

INORGANIC CHEMISTRY | 2012年 / 51卷 / 17期

关键词：

SINGLE-MOLECULE-MAGNET; GROUND-STATE; COMPLEXES; BEHAVIOR; FAMILY;

D O I：

10.1021/ic3012876

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two discrete nitrate-bridged novel "pseudo-double-propeller"-shaped hexanuclear Cu/Ln dusters of the formula [Cu(4)Ln(2)L(4)L(4)'(NO3)(2)(OH2)(2)]center dot 3NO(3)center dot 4H(2)O [Ln = Dy, Gd; LH = o-vanilin; L'H = 2-(hydroxyethyl)pyridine] were synthesized and characterized. Single-crystal X-ray diffraction studies revealed the trimeric half-propeller-type Cu-2/Ln core connected to other opposite-handed similar trimers by a bridging nitrate ligand. The Dy analogue, [Cu4Dy2L4L4'(NO3)(2)(OH2)(2)]center dot 3NO(3)center dot 4H(2)O, shows frequency-dependent out-of-phase alternating-current magnetic susceptibility, which indicates that this novel discrete [Cu4Dy2] heterometallic cluster may exhibit single-molecule-magnet behavior.

引用

页码：9159 / 9161

页数：3

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