Anion-Perturbed Magnetic Slow Relaxation in Planar {Dy4} Clusters

被引：241
|
作者：
Zheng, Yan-Zhen [1 ]
Lan, Yanhua [1 ]
Anson, Christopher E. [1 ]
Powell, Annie K. [1 ]
机构：
[1] Univ Karlsruhe TH, Inst Anorgan Chem, D-76128 Karlsruhe, Germany
来源：
INORGANIC CHEMISTRY | 2008年 / 47卷 / 23期
关键词：
D O I：
10.1021/ic8016722
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two planar tetranuclear dysprosium(III) complexes, [DY4(mu(3)-OH)(2)-(hmmpH)(2)(hMMP)(2)(Cl)(4) center dot 3MeCN center dot MeOH (1) and [DY4(mu(3)-OH)(2)-(hmmpH)(2)(hMMP)(2)(N-3)(4)] center dot 4MeOH (2) {hmmpH(2) = 2-[(2-hydroxyethylimino)methyl]-6-methoxyphenol}, which exhibit an anion-dependent magnetic slow relaxation behavior, have been synthesized by in situ condensation of o-vanillin and 2-aminoethanol. The higher energy barrier observed in 2 could be the result of a more favorable crystal field and/or orientations of single-ion easy axes of magnetization of the Dy-III ions.
引用
收藏
页码：10813 / 10815
页数：3
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