Issue 22, 2019
From the journal:

New Journal of Chemistry

A mononuclear dysprosium(iii) single-molecule magnet with a non-planar metallacrown†

Xiao-Feng Jiang,‡ab   Ming-Guang Chen,‡bc   Jia-Ping Tong ORCID logo bd  and  Feng Shao ORCID logo §*b  

* Corresponding authors

a School of Information Science and Engineering, Fujian University of Technology, Fuzhou 350118, P. R. China

b State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
E-mail: fengshao@outlook.com

c Baotou Research Institute of Rare Earths, Baotou 014040, P. R. China

d Lab of Chemical Materials and Devices, Training Base of Army Logistics University of PLA, Xiangyang 441000, P. R. China

Abstract

A mononuclear dysprosium(III)/gallium(III) metallacrown complex, {[DyGa4(Hnha)2(nha)4(NO3)(C5H5N)4](C5H6N)2}·(H2O)10 (1·H2O), was synthesized with a hydroxamic ligand: 3-hydroxy-2-napthanoic hydroxamic acid (H3nha). Meanwhile, the molecular structure was confirmed by single-crystal X-ray diffraction analysis, and the DyIII centre is nine-coordinate and adopts a distorted tricapped trigonal prism coordination geometry as indicated by continued shape measurements (CShM) SHAPE analysis. In addition, the dynamic magnetization studies revealed that complex 1 displayed field-induced single-molecule magnet behaviour with an effective energy barrier Ueff = 26.4 K and pre-exponential factor τ0 = 2.2 × 10−6 s.

Graphical abstract: A mononuclear dysprosium(iii) single-molecule magnet with a non-planar metallacrown

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Article information

DOI
https://doi.org/10.1039/C9NJ01662G
Article type
Paper
Submitted
01 Apr 2019
Accepted
04 May 2019
First published
06 May 2019

New J. Chem., 2019,43, 8704-8710

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A mononuclear dysprosium(III) single-molecule magnet with a non-planar metallacrown

X. Jiang, M. Chen, J. Tong and F. Shao, New J. Chem., 2019, 43, 8704 DOI: 10.1039/C9NJ01662G

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