Di-μ-bromido-bis­[(diethyl ether-κO)(2,4,6-tri­methyl­phen­yl)magnesium]: the mesityl Grignard reagent

The crystal structure of the title compound, [Mg₂Br₂(C₉H₁₁)₂(C₄H₁₀O)₂], features a centrosymmetric two-centre magnesium complex with half a mol­ecule in the asymmetric unit. The Mg atom is in a considerably distorted Br₂CO coordination. Bond lengths and angles are comparable with already published values. The crystal packing is stabilized by C—H...π inter­actions linking the complexes into sheets parallel to (0-11).