Di-μ-bromido-bis[benzyl(diethyl ether)magnesium]

Abstract

The title benzyl Grignard reagent, [Mg2Br2(C7H7)2(C4H10O)2], was obtained by reaction of benzyl bromide with magnesium in diethyl ether, followed by crystallization from toluene. The asymmetric unit comprises one half-molecule, the structural dimeric unit being generated by inversion symmetry with an Mg...Mg distance of 3.469 (2) Å. The Mg(II) atom exhibits a distorted tetrahedral coordination geometry. The crystal packing is defined by van der Waals interactions only.