pH-Controlled Assembly of Organophosphonate-Bridged Dysprosium(III) Single-Molecule Magnets Based on Polyoxometalates

被引：36

作者：

Huo, Yu ^{[1
]}

Chen, Yan-Cong ^{[1
]}

Wu, Si-Guo ^{[1
]}

Jia, Jian-Hua ^{[1
]}

Chen, Wen-Bin ^{[1
]}

Liu, Jun-Liang ^{[1
]}

Tong, Ming-Liang ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem, Minist Educ, Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China

来源：

INORGANIC CHEMISTRY | 2018年 / 57卷 / 12期

基金：

美国国家科学基金会;

关键词：

BOND-VALENCE PARAMETERS; CHEMICAL-PROPERTIES; DY-3; TRIANGLES; IONIC-RADII; CLUSTERS; COMPLEXES; METAL; MAGNETIZATION; TRANSITION; WHEEL;

D O I：

10.1021/acs.inorgchem.8b00795

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two structurally intriguing dysprosium(III)-substituted polyoxometalates, [Dy-6(ampH)(4)(H2O)(23)(ampH(2))(PW11O39)(2)] (1) and [Dy-9(CO3)(3)(ampH)(2)(H2O)(12)(PW10O37)(6)](35-)(2), are assembled by the same precursor under different pH conditions. The structure of 1 contains an octahedral {Dy-6(ampH)(4)} core, and a unique windmill-type {Dy-9(CO3)(3)(ampH)(2)} for 2. Single-molecule magnet behavior is observed for 2 with a thermally activated energy barrier of 56 K and no appreciable quantum tunneling of magnetization under zero field.

引用

页码：6773 / 6777

页数：5

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