Slow magnetic relaxation influenced by change of symmetry from ideal Ci to D3d in cobalt(II)-based single-ion magnets

Lei Chen; Jianjun Zhou; Hui-Hui Cui; Ai-Hua Yuan; Zhenxing Wang; Yi-Quan Zhang; Zhong-Wen Ouyang; You Song

doi:10.1039/C7DT04651K

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Slow magnetic relaxation influenced by change of symmetry from ideal C_i to D_3d in cobalt(ii)-based single-ion magnets†

Lei Chen,^a Jianjun Zhou,^a Hui-Hui Cui,^b Ai-Hua Yuan,

*^a Zhenxing Wang,

*^c Yi-Quan Zhang,*^d Zhong-Wen Ouyang^c and You Song

*^b

Author affiliations

* Corresponding authors

^a School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, P. R. China
E-mail: aihua.yuan@just.edu.cn

^b State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
E-mail: yousong@nju.edu.cn

^c Wuhan National High Magnetic Field Center & School of Physics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
E-mail: zxwang@hust.edu.cn

^d Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, P. R. China
E-mail: zhangyiquan@njnu.edu.cn

Abstract

The coordination geometries of the Co(II) site in the two complexes [Co(imidazole)₆][BPh₄]₂·0.3CH₃CN (1) and [Co(imidazole)₆][NO₃]₂ (2) were observed to display the ideal symmetries C_i and D_3d, respectively. Both complexes were shown to be field-induced single-ion magnets. The effective energy barrier was found to decrease as the local symmetry changed from low-symmetry C_i to high-symmetry D_3d.

This article is part of the themed collection: Spotlight Collection: Lanthanide and transition metal complexes as molecular magnets

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Article information

DOI: https://doi.org/10.1039/C7DT04651K
Article type: Communication
Submitted: 08 12月 2017
Accepted: 09 1月 2018
First published: 09 1月 2018

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Dalton Trans., 2018,47, 2506-2510

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Slow magnetic relaxation influenced by change of symmetry from ideal C_i to D_3d in cobalt(II)-based single-ion magnets

L. Chen, J. Zhou, H. Cui, A. Yuan, Z. Wang, Y. Zhang, Z. Ouyang and Y. Song, Dalton Trans., 2018, 47, 2506 DOI: 10.1039/C7DT04651K

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