Unique Y-shaped lanthanide aggregates and single-molecule magnet behaviour for the Dy4 analogue

被引：49

作者：

Xue, Shufang ^{[1
,2
]}

Guo, Yun-Nan ^{[1
,2
]}

Zhao, Lang ^{[1
]}

Zhang, Peng ^{[1
,2
]}

Tang, Jinkui ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

DALTON TRANSACTIONS | 2014年 / 43卷 / 04期

基金：

中国国家自然科学基金;

关键词：

ANISOTROPIC BARRIER; SQUARE GRIDS; COMPLEXES; RELAXATION; CLUSTER; BLOCKING; EXCHANGE; LIGANDS; SERIES; FIELD;

D O I：

10.1039/c3dt52444b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The assembly of N'-(amino-(pyrimidin-2-yl)methylene)-o-vanilloyl hydrazine ligands (H2L, Scheme 1)with different lanthanide perchlorates produces novel Y-shaped tetranuclear complexes, [Ln(4)(mu(3)-OH)(L2-)(4)-(H2O)(6)]center dot(ClO4)(3)center dot 6H(2)O, where Ln = Tb (1), Dy (2) and Ho (3). The formation of this unprecedented Y-shaped topology is largely ascribed to the versatility of the mixed-donor hydrazone ligands in terms of their potential denticity. Analysis of the susceptibility data shows that only the Dy-based molecule features SMM-like behaviour. The synthetic methodology of employing H2L and related ligands has provided a very promising route towards new families of magnetic coordination clusters with novel metal topologies and properties.

引用

页码：1564 / 1570

页数：7

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