Crystal structure of a dinuclear Co(II) complex with bridging fluoride ligands: di-μ-fluorido-bis­{tris­[(6-methyl­pyridin-2-yl)meth­yl]amine}­dicobalt(II) bis­(tetra­fluorido­borate)

Reaction of Co(BF(4))(2)·6H(2)O with tris­[(6-methyl­pyridin-2-yl)meth­yl]amiine in methanol results in a fluoride abstraction from BF(4) (−), yielding the unexpected title compound, [Co(2)F(2)(C(21)H(24)N(4))(2)](BF(4))(2). The complex cation consists of two inversion-related [Co(C(21)H(24)N(4))](2+) moieties bridged by a pair of fluoride ligands. The Co(II) cation is six-coordinated in a distorted octa­hedral geometry and forms a +II high-spin state. In the crystal, the complex cation and the BF(4) (−) anion are connected by C—H⋯F hydrogen bonds, forming a three-dimensional network. An intra­molecular C—H⋯F hydrogen bond is also observed.