Artikel,

Bis(1,2-dimethoxyethane)-1$\kappa$$2$O,O$^\prime$;3$\kappa$$2$O,O$^\prime$-tetra\-kis\-($\mu$-1,1,1,3,3,3-hexa\-fluoro-2-methyl\-propan-2-olato)-1:2$\kappa$$4$O:O;2:3$\kappa$$4$O:O-1,3-dilithium-2-magnesium

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Acta Crystallographica Section E, 68 (8): m1106 (August 2012)
DOI: 10.1107/S1600536812032679

Zusammenfassung

The title compound, [Li$2$Mg(C$4$H$3$F$6$O)$4$(C$4$H$10$O$2$)$2$], forms as a white crystalline powder by-product of the reaction of lithium 1,1,1,3,3,3-hexa\-fluoro-2-methyl-2-propoxide with Mo(N-2,6-Me$2$---C$6$H$3$)(CHCMe$2$Ph)(O$3$SCF$3$)$2$$\cdot$2DME (DME is 1,2-dimethoxyethane) contaminated with MgCl$2$. The crystal structure of this compound contains half a mol\-ecule in the asymmetric unit, with a twofold rotation axis through the central Mg$2+$ cation. The four 1,1,1,3,3,3-hexa\-fluoro-2-methyl\-propan-2-olate ligands serve as bridging ligands connecting the Li$+$ and Mg$2+$ cations. The Li$+$ cation is additionally stabilized by a DME ligand. This results in a distorted tetra\-hedral ligand field around both the Mg$2+$ and Li$+$ cations.

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