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In the title compound, tetra­kis[μ 3 -(2-pyrid­yl)methano­lato]tetra­kis[bromido(methanol)cobalt(III)] tetra­bromide 2-(hydroxy­meth­yl)pyridine tetra­solvate dihydrate,  [Co 4 Br 4 (C 6 H 6 NO) 4 (CH 3 OH) 4 ]Br 4 ·4C 6 H 7 NO 4 ·2H 2 O, the cation comprises a [Co 4 O 4 ] cubane-type core (symmetry). The four Co III  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.

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