Coordination-tuned single-molecule-magnet behavior of TbIII-CuII dinuclear systems.
Coordination-tuned single-molecule-magnet behavior of TbIII-CuII dinuclear systems.
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DOI：
10.1021/ic8013656
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发表时间：
2008-08
影响因子：
4.6
通讯作者：
T. Kajiwara;M. Nakano;S. Takaishi;M. Yamashita
中科院分区：
文献类型：
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作者：
T. Kajiwara;M. Nakano;S. Takaishi;M. Yamashita
通过[TbCu(o-vanilate) 2(NO 3) 3]与甲氧基丙胺(MeOC 3H 6NH 2, 1)或乙氧基乙胺(EtOC 2H 4NH 2, 2)反应合成Tb(III)-Cu(II)基单分子磁体(SMM)和非SMM，研究磁各向异性与配体场对称性之间的关系。在这两种配合物中，Tb (III) 离子具有双帽方形反棱镜配位几何形状。当Tb(III)离子处于不太对称的配体场中时，它具有易轴各向异性并表现出SMM行为，而当它处于更对称的环境中时，它具有易平面各向异性并表现出非SMM行为。
Tb (III)-Cu (II)-based single-molecule magnet (SMM) and non-SMM were synthesized to investigate the relationship between magnetic anisotropy and the symmetry of the ligand field by the reaction of [TbCu( o-vanilate) 2(NO 3) 3] with methoxypropylamine (MeOC 3H 6NH 2, 1) or ethoxyethylamine (EtOC 2H 4NH 2, 2). In both complexes, Tb (III) ions have a bicapped square-antiprism coordination geometry. When the Tb (III) ion is in a less symmetrical ligand field, it has an easy-axis anisotropy and shows SMM behavior, whereas when it is in a more symmetrical environment, it has an easy-plane anisotropy and exhibits non-SMM behavior.