Metallogrid Single-Molecule Magnet: Solvent-Induced Nuclearity Transformation and Magnetic Hysteresis at 16 K

被引：83

作者：

Huang, Wei ^{[1
]}

Shen, Fu-Xing ^{[1
]}

Wu, Shu-Qi ^{[2
]}

Liu, Li ^{[1
]}

Wu, Dayu ^{[1
]}

Zheng, Zhe ^{[1
]}

Xu, Jun ^{[1
]}

Zhang, Ming ^{[1
]}

Huang, Xing-Cai ^{[1
]}

Jiang, Jun ^{[1
]}

Pan, Feifei ^{[1
]}

Li, Yao ^{[1
]}

Zhu, Kun ^{[1
]}

Sato, Osamu ^{[2
]}

机构：

[1] Changzhou Univ, Sch Petrochem Engn, Collaborat Innovat Ctr Adv Catalysis & Green Mfg, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Jiangsu, Peoples R China

[2] Kyushu Univ, Inst Mat Chem & Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

来源：

INORGANIC CHEMISTRY | 2016年 / 55卷 / 11期

基金：

中国国家自然科学基金;

关键词：

LANTHANIDE CLUSTER; SQUARE GRIDS; DY-4; ANALOG; ION MAGNET; RELAXATION; BEHAVIOR; COMPLEXES; TETRANUCLEAR; ANISOTROPY; DYNAMICS;

D O I：

10.1021/acs.inorgchem.6b00500

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Structural assembly and reversible transformation between a metallogrid Dy-4 SMM (2) and its fragment Dy-2 (1) were established in the different solvent media. The zero-field magnetization relaxation was slowed for dysprosium metallogrid (2) with relaxation barrier of U-eff = 61.3 K when compared to Dy-2 (1). Both magnetic dilution and application of a moderate magnetic field suppress ground-state quantum tunneling of magnetization and result in an enhanced U-eff of 119.9 and 96.7 K for 2, respectively. Interestingly, the lanthanide metallogrid complex (2) exhibits magnetic hysteresis loop even up to 16 K at a given field sweep rate of 500 Oe/s.

引用

页码：5476 / 5484

页数：9

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