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
12 Nov 2015
Accepted
13 Dec 2015
First published
21 Dec 2015

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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