Date Published: May 01, 2010
Publisher: International Union of Crystallography
Author(s): Fang-Ming Wang, Chang-Sheng Lu, Yi-Zhi Li, Qing-Jin Meng.
In the title compound, tetrakis[μ3-(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 ( 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.
For related structures and magnetic properties, see: Tong et al. (2002 ▶); Yang et al. (2002 ▶); Zhao et al. (2004 ▶).