Bis(1,2-dimethoxyethane)-1κ2O,O′;3κ2O,O′-tetrakis(μ-1,1,1,3,3,3-hexafluoro-2-methylpropan-2-olato)-1:2κ4O:O;2:3κ4O:O-1,3-dilithium-2-magnesium

Abstract

The title compound, [Li2Mg(C4H3F6O)4(C4H10O2)2], forms as a white crystalline powder by-product of the reaction of lithium 1,1,1,3,3,3-hexafluoro-2-methyl-2-propoxide with Mo(N-2,6-Me2—C6H3)(CHCMe2Ph)(O3SCF3)2·2DME (DME is 1,2-dimethoxyethane) contaminated with MgCl2. The crystal structure of this compound contains half a molecule in the asymmetric unit, with a twofold rotation axis through the central Mg2+ cation. The four 1,1,1,3,3,3-hexafluoro-2-methylpropan-2-olate ligands serve as bridging ligands connecting the Li+ and Mg2+ cations. The Li+ cation is additionally stabilized by a DME ligand. This results in a distorted tetrahedral ligand field around both the Mg2+ and Li+ cations.