The Organic Ammonium Counterion Effect on Slow Magnetic Relaxation of the [Er(hfac)4]− Complexes

IF 2.6 4区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Magnetochemistry Pub Date : 2023-06-16 DOI:10.3390/magnetochemistry9060159

T. Prokhorova, D. Korchagin, G. Shilov, A. Dmitriev, M. Zhidkov, E. Yagubskii

引用次数: 0

Abstract

The first mononuclear anionic erbium complex [Er(hfac)4]− (hfac = hexafluoroacetylacetone) with an organic ammonium cation [(CH3)4N+] as the counterion was synthesized and structurally and magnetically characterized. The coordination geometries around the Er ions are square antiprisms with pseudo-D4d symmetry. The complex shows distinct field-induced slow magnetization relaxation, which is described by a combination of Orbach (Ueff/kB~28.54(8) K.) and direct mechanisms. Quantum chemical calculations were performed to analyze the magnetic properties of the complex under consideration.

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有机铵反离子对[Er(hfac)4]−配合物慢磁弛豫的影响

合成了第一个以有机铵离子[(CH3)4N+]为反离子的单核阴离子铒配合物[Er(hfac)4]−(hfac =六氟乙酰丙酮)，并对其进行了结构和磁性表征。离子周围的配位几何是具有伪d4d对称的方形反棱镜。该配合物表现出明显的场致慢磁化弛豫，这是由Orbach (Ueff/kB~28.54(8) k)和直接机制共同描述的。量子化学计算分析了所考虑的配合物的磁性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Magnetochemistry Chemistry-Chemistry (miscellaneous)

CiteScore

3.90

自引率

11.10%

发文量

145

审稿时长

11 weeks

期刊介绍： Magnetochemistry (ISSN 2312-7481) is a unique international, scientific open access journal on molecular magnetism, the relationship between chemical structure and magnetism and magnetic materials. Magnetochemistry publishes research articles, short communications and reviews. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.