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Issue 4, 2013
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Zero-field slow magnetic relaxation from single Co(II) ion: a transition metal single-molecule magnet with high anisotropy barrier

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Abstract

An air-stable star-shaped CoIICoIII3 complex with only one paramagnetic Co(II) ion in the D3 coordination environment has been synthesized from a chiral Schiff base ligand. Magnetic studies revealed that this complex exhibits slow magnetic relaxation in the absence of an applied dc field, which is one of the main characteristics of single-molecule magnets (SMMs). The relaxation barrier is as high as 109 K, which is quite large among transition-metal ion-based SMMs. The complex represents the first example of zero-field SMM behavior in a mononuclear six oxygen-coordinate Co(II) complex.

Graphical abstract: Zero-field slow magnetic relaxation from single Co(ii) ion: a transition metal single-molecule magnet with high anisotropy barrier

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Publication details

The article was received on 03 Nov 2012, accepted on 08 Feb 2013 and first published on 11 Feb 2013


Article type: Edge Article
DOI: 10.1039/C3SC21893G
Citation: Chem. Sci., 2013,4, 1802-1806
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    Zero-field slow magnetic relaxation from single Co(II) ion: a transition metal single-molecule magnet with high anisotropy barrier

    Y. Zhu, C. Cui, Y. Zhang, J. Jia, X. Guo, C. Gao, K. Qian, S. Jiang, B. Wang, Z. Wang and S. Gao, Chem. Sci., 2013, 4, 1802
    DOI: 10.1039/C3SC21893G

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