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Acta Cryst. (2010). E66, m594  [ doi:10.1107/S1600536810015369 ]

A tetranuclear cobalt(III) cluster with 2-(hydroxymethyl)pyridine ligands

F.-M. Wang, C.-S. Lu, Y.-Z. Li and Q.-J. Meng

Abstract: In the title compound, tetrakis[[mu]3-(2-pyridyl)methanolato]tetrakis[bromido(methanol)cobalt(III)] tetrabromide 2-(hydroxymethyl)pyridine tetrasolvate dihydrate, [Co4Br4(C6H6NO)4(CH3OH)4]Br4·4C6H7NO4·2H2O, the cation comprises a [Co4O4] cubane-type core (\\overline4 symmetry). The four CoIII ions and bridging O atoms from four (2-pyridyl)methanolate anions are located at alternating vertices of the cube, with bromide ions and methanol ligands on the exterior of the core, completing a distorted octahedral geometry. The structure is stablized by intermolecular O-H...Br and O-H...O interactions.

Online 30 April 2010

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