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Issue 44, 2016
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Anion-directed supramolecular chemistry modulating the magnetic properties of nanoscopic Mn coordination clusters: from polynuclear high-spin complexes to SMMs

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Abstract

We report a supramolecular approach to mixed-valent Mn coordination clusters that demonstrates how halide ions can be applied to influence the assembly of distinct tetranuclear building units to produce a number of related Mn coordination clusters with dense core structures that derive from a cuboctahedral arrangement of Mn ions. In all compounds the alignment of the Jahn–Teller axes of the MnIII centers coincides with the positions of the stabilizing chloride ligands. Thus, the relative chloride concentrations in the reaction mixtures allow us to modify the symmetry and magnetic anisotropy of this basic core structures resulting in isotropic polynuclear high-spin complexes at high Cl concentrations and Single-Molecule Magnets at lower relative Cl concentrations.

Graphical abstract: Anion-directed supramolecular chemistry modulating the magnetic properties of nanoscopic Mn coordination clusters: from polynuclear high-spin complexes to SMMs

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Article information


Submitted
03 Jul 2016
Accepted
11 Oct 2016
First published
11 Oct 2016

Dalton Trans., 2016,45, 17705-17713
Article type
Paper
Author version available

Anion-directed supramolecular chemistry modulating the magnetic properties of nanoscopic Mn coordination clusters: from polynuclear high-spin complexes to SMMs

L. Zhang, T. Chimamkpam, C. I. Onet, N. Zhu, R. Clérac and W. Schmitt, Dalton Trans., 2016, 45, 17705
DOI: 10.1039/C6DT02642G

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