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

Date Published: May 01, 2010

Publisher: International Union of Crystallography

Author(s): Fang-Ming Wang, Chang-Sheng Lu, Yi-Zhi Li, Qing-Jin Meng.

http://doi.org/10.1107/S1600536810015369

Abstract

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.

Partial Text

For related structures and magnetic properties, see: Tong et al. (2002 ▶); Yang et al. (2002 ▶); Zhao et al. (2004 ▶).

Source:

http://doi.org/10.1107/S1600536810015369