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Issue 3, 2016
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Guest-dependent single-ion magnet behaviour in a cobalt(II) metal–organic framework

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Abstract

Single-ion magnets (SIMs) are the smallest possible magnetic devices for potential applications in quantum computing and high-density information storage. Both, their addressing in surfaces and their organization in metal–organic frameworks (MOFs) are thus current challenges in molecular chemistry. Here we report a two-dimensional 2D MOF with a square grid topology built from cobalt(II) SIMs as nodes and long rod-like aromatic bipyridine ligands as linkers, and exhibiting large square channels capable to host a large number of different guest molecules. The organization of the cobalt(II) nodes in the square layers improves the magnetic properties by minimizing the intermolecular interactions between the cobalt(II) centres. Moreover, the SIM behaviour was found to be dependent on the nature of the aromatic guest molecules. The whole process could be followed by single-crystal X-ray diffraction, providing comprehensive evidence of the putative role of the solvent guest molecules that leave a “fingerprint” on the 2D structures and thus, on the cobalt environment.

Graphical abstract: Guest-dependent single-ion magnet behaviour in a cobalt(ii) metal–organic framework

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Publication details

The article was received on 20 Nov 2015, accepted on 09 Dec 2015 and first published on 10 Dec 2015


Article type: Edge Article
DOI: 10.1039/C5SC04461H
Chem. Sci., 2016,7, 2286-2293
  • Open access: Creative Commons BY license
    All publication charges for this article have been paid for by the Royal Society of Chemistry

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    Guest-dependent single-ion magnet behaviour in a cobalt(II) metal–organic framework

    J. Vallejo, F. R. Fortea-Pérez, E. Pardo, S. Benmansour, I. Castro, J. Krzystek, D. Armentano and J. Cano, Chem. Sci., 2016, 7, 2286
    DOI: 10.1039/C5SC04461H

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