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Issue 17, 2016
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New tetranuclear manganese clusters with [Mn II3MnIII] and [Mn II2Mn III2] metallic cores exhibiting low and high spin ground state

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Abstract

Two tetranuclear mixed-valent clusters, [MnII3MnIIICl(Ph3CCOO)4(CH3OCH2CH2O)4(CH3CN)]·0.4C6H5CH3·0.6CH3CN (1) with an unprecedented [MnII3MnIII] core and [MnII2MnIII2Cl4(CH3OCH2CH2O)6] (2), were synthesized and characterized by single-crystal X-ray diffraction and magnetic measurements. Their properties were analyzed in the framework of phenomenological modelling and DFT calculations, showing acceptable agreement between theory and experiment. Both building blocks [MnII3MnIII] and [MnII2MnIII2] provide good examples of bipartite systems with the lowest ST = 1/2 and highest ST = 9 magnetic ground states available for them. The topology of the magnetic interactions in the [MnII3MnIII] core provides a suitable template for the molecular qubit implementation and the stability of the spin-1/2 ground state strongly depends on the antiferromagnetic MnII–MnII coupling.

Graphical abstract: New tetranuclear manganese clusters with [MnII3MnIII] and [MnII2MnIII2] metallic cores exhibiting low and high spin ground state

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Article information


Submitted
14 Dec 2015
Accepted
07 Mar 2016
First published
08 Mar 2016

Dalton Trans., 2016,45, 7303-7311
Article type
Paper
Author version available

New tetranuclear manganese clusters with [MnII3MnIII] and [MnII2MnIII2] metallic cores exhibiting low and high spin ground state

M. Sobocińska, M. Antkowiak, M. Wojciechowski, G. Kamieniarz, J. Utko and T. Lis, Dalton Trans., 2016, 45, 7303
DOI: 10.1039/C5DT04869A

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