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Issue 22, 2011
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A mixed valence manganese triangle in a trigonal lattice: structure and magnetism

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Abstract

The synthesis, structural and magnetic characterisation of trinuclear manganese cluster, [Mn3O(O2C-anth)6(HOCH3)3] 1 (where O2C-anth = 9-anthracenecarboxylate), with crystallographic three-fold (C3) symmetry, are described. The cluster was prepared by a carboxylate exchange reaction between HO2C-anth and [Mn12O12(O2CMe)16(H2O)4] with concomitant fragmentation of the dodecanuclear Mn core of the starting material to form a trinuclear Mn33-O) cluster capped by six carboxylate ligands. Bond valence sum calculations and SQUID magnetometric measurements establish the oxidation states of the metal ions as MnII·2 MnIII which are antiferromagnetically coupled.

Graphical abstract: A mixed valence manganese triangle in a trigonal lattice: structure and magnetism

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Publication details

The article was received on 12 Jan 2011, accepted on 04 Apr 2011 and first published on 04 May 2011


Article type: Paper
DOI: 10.1039/C1DT10057B
Dalton Trans., 2011,40, 5891-5894

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    A mixed valence manganese triangle in a trigonal lattice: structure and magnetism

    N. Taleb, V. J. Richards, S. P. Argent, J. van Slageren, W. Lewis, A. J. Blake and N. R. Champness, Dalton Trans., 2011, 40, 5891
    DOI: 10.1039/C1DT10057B

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