一种亚胺配体显著提高了镝（III）单分子磁体的有效能垒。
An imido ligand significantly enhances the effective energy barrier of dysprosium(iii) single-molecule magnets.
作者信息
Liu Bing-Cheng, Ge Ning, Zhai Yuan-Qi, Zhang Tao, Ding You-Song, Zheng Yan-Zhen
机构信息
Frontier Institute of Science and Technology (FIST), State Key Laboratory of Mechanical Behaviour for Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter, Xi'an Key Laboratory of Sustainable Energy and Materials Chemistry and School of Science, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an, Shaanxi 710054, P. R. China.
出版信息
Chem Commun (Camb). 2019 Aug 14;55(63):9355-9358. doi: 10.1039/c9cc04687a. Epub 2019 Jul 17.
We report herein an imido ligand 1,3-bis(2,6-diisopropylphenyl) imidazolin-2-imine (ImNH) that can form a very short Dy-N bond (2.12 Å) with the dysprosium(iii) ion, which leads to a much larger effective energy barrier for magnetisation reversal (803 K) compared to the analogous alkoxide ligand (53 K). Moreover, we predict that a linear two-coordinate [Dy(ImN)] complex may have an effective energy barrier larger than 4000 K.
我们在此报告一种亚胺配体1,3-双（2,6-二异丙基苯基）咪唑啉-2-亚胺（ImNH），它能与镝（iii）离子形成非常短的Dy-N键（2.12 Å），与类似的醇盐配体（53 K）相比，这导致磁化反转的有效能垒大得多（803 K）。此外，我们预测线性二配位[Dy(ImN)]配合物可能具有大于4000 K的有效能垒。
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