Single-Molecule Magnetism in Dy2 Cluster Based on a Schiff Base Ligand

被引：2

作者：

Wang, Yingying ^{[1
]}

Yuan, Zhuangdong ^{[1
]}

Guo, Yunjie ^{[1
]}

Ma, Xuxiao ^{[1
]}

Meng, Zitong ^{[1
]}

Sha, Jingquan ^{[1
]}

Zhang, Haifeng ^{[1
]}

机构：

[1] Jining Univ, Dept Chem & Chem Engn, Key Lab Inorgan Chem Univ Shandong, Qufu 273155, Shandong, Peoples R China

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2020年 / 646卷 / 20期

基金：

美国国家科学基金会;

关键词：

Single molecule magnet; Schiff-base ligand; Lanthanides; Dinuclear clusters; Energy barriers; LANTHANIDE COMPLEXES; BEHAVIOR; RELAXATION; DYSPROSIUM; FIELD; DYNAMICS; EXCHANGE; SERIES; MAGNETIZATION; LUMINESCENCE;

D O I：

10.1002/zaac.202000089

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two dinuclear Ln(III)-based clusters, namely [Dy2L2(NO3)(2)(DME)(4)] (1) and [Gd2L2(NO3)(2)(DME)(4)] (2) [H2L = (E)-2-((2-hydroxybenzylidene)amino)phenol] were obtained under hydrothermal condition. Two Ln(III) ions are bridged by two phenolic hydroxyl oxygen atoms, and the distances of them are 3.829 angstrom (Dy1-Dy1A) and 3.860 angstrom (Gd1-Gd1A). Two Dy1-O-Dy1A and Gd1-O-Gd1A angles are 109.4 degrees and 109.8 degrees, respectively. Magnetic studies reveal a weak antiferromagnetic interaction between Gd ions in complex 2, and single-molecule magnet behavior for 1 with U-eff = 49.9 K and tau(0) = 1.54 x 10(-6) s.

引用

页码：1696 / 1701

页数：6

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