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Issue 8, 2018
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Cyanide-bridged coordination polymers constructed from lanthanide ions and octacyanometallate building-blocks

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Abstract

A new series of cyanide-bridged assemblies, {KH[Ln2(2,3-pzdc)2(CH3OH)(H2O)7][M(CN)8]}·5H2O (Ln3+ = Nd, Gd, Tb, and Dy; M4+ = Mo and W), were synthesised by self-assembling lanthanide ions and octacyanometallate ions in the presence of pyrazine-2,3-dicarboxylic acid (2,3-H2pzdc). These compounds have a 3D structure in which octagon-like Ln4M4(CN)8 rings are connected through a second Ln3+ center via the carboxylate groups of one 2,3-pzdc. The resulting 1D channels are filled with K+ ions and lattice water molecules. The temperature and field dependent magnetization studies as well as ab initio calculations indicate weak ferromagnetic interactions between the Gd3+ ions within the GdMo compound whilst no magnetic interactions exist in GdW analogues. The magnetic properties of Nd3+, Tb3+ and Dy3+ compounds are strongly dominated by the magnetic anisotropy of the lanthanide ions, irrespective of the octacyanometallate building-block used.

Graphical abstract: Cyanide-bridged coordination polymers constructed from lanthanide ions and octacyanometallate building-blocks

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Supplementary files

Article information


Submitted
17 Apr 2018
Accepted
15 Jun 2018
First published
19 Jun 2018

Inorg. Chem. Front., 2018,5, 1967-1977
Article type
Research Article

Cyanide-bridged coordination polymers constructed from lanthanide ions and octacyanometallate building-blocks

Y. Gao, M. Viciano-Chumillas, A. M. Toader, S. J. Teat, M. Ferbinteanu and S. Tanase, Inorg. Chem. Front., 2018, 5, 1967 DOI: 10.1039/C8QI00357B

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