Heterometallic cubane single-molecule magnets

被引：52

作者：

Feng, Patrick L.

Beedle, Christopher C.

Wernsdorfer, Wolfgang

Koo, Changhyun

Nakano, Motohiro

Hill, Stephen

Hendrickson, David N. ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA

[2] Inst Neel, CNRS, Grenoble 9, France

[3] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

[4] Osaka Univ, Div Appl Chem, Osaka 5650871, Japan

来源：

INORGANIC CHEMISTRY | 2007年 / 46卷 / 20期

关键词：

D O I：

10.1021/ic7012107

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two new heterometallic cubane molecules have been synthesized, High-frequency electron paramagnetic resonance and magnetization measurements indicate that [Mn3Ni(hMP)(3)O(N-3)(3)(C7H5O2)(3)] (1) displays a well-isolated S = 5 ground state (Delta E > 120 K), with g 2.0, D = -0.23 cm(-1), and ferromagnetic Mn-Mn exchange Interactions competing with antiferromagnetic Ni-Mn interactions.[Mn3Zn(hmp)(3)O(N-3)(3)(C3H5O2)(3)] (2) possesses a S = 6 ground state (Delta E > 105 K), with g = 2.0, D = -0.14 cm(-1), and ferromagnetic Mn-Mn exchange interactions. Magnetization vs magnetic field data for oriented single crystals of 1 and 2 indicate that both complexes are single-molecule magnets.

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页码：8126 / 8128

页数：3

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