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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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Article information


Submitted
12 Jan 2011
Accepted
04 Apr 2011
First published
04 May 2011

Dalton Trans., 2011,40, 5891-5894
Article type
Paper

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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