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

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, which adopts distorted tricapped trigonal prism coordination geometry as indicated by Continued Shape Measurements (CShM) SHAPE analysis. In addition, the dynamic magnetization studies revealed that the complex 1 displayed field-induced single-molecule magnet behaviour with an energy barrier (Ueff = 26.4 K) and pre-exponential factor τ0 = 2.2 × 10–6 s.

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Supplementary files

Publication details

The article was received on 01 Apr 2019, accepted on 04 May 2019 and first published on 06 May 2019


Article type: Paper
DOI: 10.1039/C9NJ01662G
New J. Chem., 2019, Accepted Manuscript

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

    X. Jiang, M. Chen, J. Tong and F. SHAO, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9NJ01662G

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