Issue 2, 2016

Mixed-anion templated cage-like lanthanide clusters: Gd27 and Dy27

Abstract

Two nanoscale clusters whose metals are exclusively lanthanides, and whose formulas are [(ClO4)@Ln273-OH)32(CO3)8(CH3CH2COO)20(H2O)40]·(ClO4)12·(H2O)50 (abbreviated as Ln27. 1, Gd; 2, Dy), were synthesized. Structural analysis showed that the 27 lanthanide ions were organized into a beautiful cage-like structure templated by eight CO32− groups, which were generated from the fixation of atmospheric CO2. Acting as a template guest, one ClO4 group was encapsulated in the Ln27 cage. The Ln27 compound is by far the largest odd-numbered lanthanide cluster synthesized to date. In magnetization studies of these two compounds, isotropic Gd27 exhibited a large MCE of 41.8 J kg−1 k−1 at 2 K for ΔH = 7 T, while anisotropic Dy27 displayed a slow relaxation of its magnetization.

Graphical abstract: Mixed-anion templated cage-like lanthanide clusters: Gd27 and Dy27

Supplementary files

Article information

Article type
Research Article
Submitted
30 محرم 1437
Accepted
02 ربيع الأول 1437
First published
10 ربيع الأول 1437

Inorg. Chem. Front., 2016,3, 320-325

Mixed-anion templated cage-like lanthanide clusters: Gd27 and Dy27

X. Zheng, J. Peng, X. Kong, L. Long and L. Zheng, Inorg. Chem. Front., 2016, 3, 320 DOI: 10.1039/C5QI00249D

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