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Issue 15, 2018
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Four 3d–4f heterometallic Ln45M7 clusters protected by mixed ligands

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Abstract

Four high-nuclearity lanthanide–transition metal clusters, formulated as [Ln45M7(OH)68(CO3)12(CH3COO)26(CH3CH2COO)6(H2O)70]·(ClO4)25·(H2O)x (abbreviated as Ln45M7: 1, Gd45Co7; 2, Gd45Ni7; 3, Dy45Co7; 4, Dy45Ni7; x ≈ 50), were obtained with the mixed protecting ligands acetate and propionate. Structural analysis shows that the cluster cationic core contains 52 metal ions featuring a bowl-like structure. 12 CO32− and 3 ClO4 anions play the role of mixed anion templates. Magnetic studies reveal that the two isotropic Gd-containing clusters Gd45Co7 and Gd45Ni7 exhibit a large magnetocaloric effect (MCE), while the anisotropic Dy-containing clusters Dy45Co7 and Dy45Ni7 show slow relaxation of magnetization.

Graphical abstract: Four 3d–4f heterometallic Ln45M7 clusters protected by mixed ligands

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Publication details

The article was received on 02 Feb 2018, accepted on 08 Mar 2018 and first published on 09 Mar 2018


Article type: Paper
DOI: 10.1039/C8CE00173A
Citation: CrystEngComm, 2018,20, 2120-2125
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    Four 3d–4f heterometallic Ln45M7 clusters protected by mixed ligands

    S. Fan, S. Xu, X. Zheng, Z. Yan, X. Kong, L. Long and L. Zheng, CrystEngComm, 2018, 20, 2120
    DOI: 10.1039/C8CE00173A

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