Acta Cryst. (2011). E67, m533 [ doi:10.1107/S1600536811011743 ]
Abstract: The title compound, Li+·C2BF2O4-·2C4H8O2S, is a dimeric species, which resides across a crystallographic inversion center. The dimers form eight-membered rings containing two Li+ cations, which are joined by O2S sulfone linkages. The Li+ cations are ligated by four O atoms from the anions and solvent molecules, forming a pseudo-tetrahedral geometry. The exocyclic coordination sites are occupied by O atoms from the oxalate group of the difluoro(oxalato)borate anion and an additional tetramethylene sulfone ligand.
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