Synthesis, structure and slow magnetic relaxation of a linear Ho4 cluster

被引：6

作者：

Han, Ling-Jun ^{[1
]}

Chen, Juan ^{[1
]}

Zhang, Zhi-Qing ^{[1
]}

Zhang, Huan-Huan ^{[1
]}

Kang, Ting-Ting ^{[1
]}

Wang, Wen-Min ^{[1
]}

Mu, Shan-Liang ^{[2
]}

Shi, Ying ^{[3
]}

机构：

[1] Taiyuan Normal Univ, Dept Chem, Jinzhong 030619, Peoples R China

[2] Linyi Univ, Coll Chem & Chem Engn, Linyi 276000, Peoples R China

[3] Taiyuan Normal Univ, Dept Biol, Jinzhong 030619, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2018年 / 96卷

关键词：

Multidentate Schiff base ligands; Ho-4; cluster; Structure; Magnetic property; Slow magnetic relaxation; SINGLE-MOLECULE MAGNET; LANTHANIDE(III) DINUCLEAR COMPLEXES; SMM BEHAVIOR; LIGAND; LN(4); DY; LN; REFRIGERATION; STRATEGIES; COMPOUND;

D O I：

10.1016/j.inoche.2018.08.005

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new Ho-4 cluster, namely, [Ho-4(tmhd)(8)(L)(2)(CH3OH)(2)]center dot CH3OH (1) (tmhd = 2,2,6,6-tetra- methyl-3,5-heptanedione, H3L = 2-[(2-(hydroxyimino)propanehydrazide)methyl]), has been successfully synthesized via using a multidentate Schiff base ligand, and further characterized by crystallography. Structural analysis shows that four Ho-III ions in cluster 1 are linearly arranged. The magnetic study reveals that 1 exhibits slow magnetic relaxation under zero dc field. When under an external 3000 Oe dc field, we obtained the effective energy barrier Delta E/k(B) = 13.8 K and the pre-exponential factor tau(0) = 2.8 x 10(-6 )s.

引用

页码：52 / 55

页数：4

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