Crystal structure of bromido­penta­kis­(tetra­hydro­furan-κO)magnesium bis­[1,2-bis­(di­phenyl­phosphan­yl)benzene-κ(2) P,P′]cobaltate(−1) tetra­hydro­furan disolvate

Structural characterization of the ionic title complex, [MgBr(THF)(5)][Co(dpbz)(2)]·2THF [THF is tetra­hydro­furan, C(4)H(8)O; dpbz is 1,2-bis­(di­phenyl­phosphan­yl)benzene, C(30)H(24)P(2)], revealed a well-separated cation and anion co-crystallized with two THF solvent mol­ecules that inter­act with the cation via weak C—H⋯O contacts. The geometry about the cobalt center is pseudo­tetra­hedral, as is expected for a d (10) metal center, only deviating from an ideal tetra­hedral geometry because of the restrictive bite angles of the bidentate phosphane ligands. Three THF ligands of the cation and one co-crystallized THF solvent mol­ecule are each disordered over two orientations. In the extended structure, the cations and THF solvent mol­ecules are arranged in (100) sheets that alternate with layers of anions, the latter of which show various π-inter­actions, which may explain the particular packing arrangement.