μ 3-Oxido-hexa-μ 2-pivalato-tris[(methanol-κO)cobalt(III)] chloride

The crystal structure of the title compound, [Co(3)(C(5)H(9)O(2))(6)O(CH(4)O)(3)]Cl, consists of trinuclear Co(III) complex cations and chloride anions. The Co(III) cation has site symmetry m, and is coordinated by four oxygen atoms from four bridging pivalate groups, one central O anion and a methanol oxygen atom, forming a distorted octa-hedral geometry. The coordinated methanol mol-ecule is located on a crystallographic special position, the C and O atoms being located on the mirror plane. The central O anion lies in the crystallographic position, and acts as a μ(3)-O bridge, linking three equivalent Co(III) cations and generating the oxo-centered trinuclear Co(III) complex. The chloride anion, which acts as the counter-ion, is located on crystallographic position. O-H⋯Cl hydrogen bonding between the Cl anion and hydroxyl group of the coordinated methanol mol-ecule links the mol-ecules into a supra-molecular network.