A Six-Coordinate Dysprosium Single-Ion Magnet with Trigonal-Prismatic Geometry
A Six-Coordinate Dysprosium Single-Ion Magnet with Trigonal-Prismatic Geometry
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具有三棱柱几何形状的六配位镝单离子磁体
DOI：
10.1021/acs.inorgchem.7b00952
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发表时间：
2017
影响因子：
4.6
通讯作者：
Song Gao
中科院分区：
文献类型：
--
作者：
Shan-Shan Liu;Yin-Shan Meng;Yi-Quan Zhang;Zhao-Sha Meng;Ke Lang;Zhen-Liang Zhu;Chang-Fang Shang;Bing-Wu Wang;Song Gao
合成了一种单核六配位镝配合物，并对其进行了结构和磁性表征。x射线结构分析显示了DyIIIcenter的三角-棱柱配位几何。在没有直流磁场的情况下，可以观察到磁化的缓慢弛豫和磁滞高达3.0 K，表明其单离子磁铁行为。Arrhenius拟合和从头算表明，在实验条件下，高温下可能不会通过奥巴赫过程发生磁弛豫过程。
A mononuclar six-coordinate dysprosium complex was synthesized and structurally and magnetically characterized. X-ray structural analyses show trigonal-prismatic coordination geometry of the DyIIIcenter. Slow relaxation of magnetization in the absence of a direct-current field and magnetic hysteresis up to 3.0 K could be observed, indicating its single-ion-magnet behavior. Arrhenius fitting and ab initio calculations suggest that the magnetic relaxation process may not occur through the Orbach process at high temperatures under the experimental conditions.