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Issue 26, 2017
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3D Ln-MOFs containing pentanuclear clusters exhibiting magnetic refrigeration and slow magnetic relaxation

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Abstract

Two isostructural lanthanide-based 3D metal–organic frameworks (Ln-MOFs), [Ln53-OH)6(TZI)3(DMA)1.5(H2O)9.5]·DMA [Ln = Gd (1) and Dy (2), H3TZI = 5-(1H-tetrazol-5-yl)isophthalic acid], have been synthesized and structurally and magnetically characterized. In 1 and 2, the pentanuclear clusters with mixed (μ3-OH)(μ2-carboxylate) bridges are connected into 1D chains by μ2-H2O bridges, and then these chains are linked into 3D structures by the TZI ligands. The magnetic study suggests that 1 shows significant cryogenic magnetocaloric effects (−ΔSm = 41.3 J kg−1 K−1, ΔH = 70 kOe, 2.5 K), whereas 2 exhibits slow relaxation of magnetization.

Graphical abstract: 3D Ln-MOFs containing pentanuclear clusters exhibiting magnetic refrigeration and slow magnetic relaxation

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Publication details

The article was received on 12 Apr 2017, accepted on 01 Jun 2017 and first published on 01 Jun 2017


Article type: Paper
DOI: 10.1039/C7CE00698E
Citation: CrystEngComm, 2017,19, 3660-3665
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    3D Ln-MOFs containing pentanuclear clusters exhibiting magnetic refrigeration and slow magnetic relaxation

    F. Liu, H. Huang, W. Gao, X. Zhang and J. Liu, CrystEngComm, 2017, 19, 3660
    DOI: 10.1039/C7CE00698E

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