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Lithium difluoro(oxalato)borate tetramethylene sulfone disolvate

Acta Crystallographica Section E

Structure Reports Online

Volume 67, Part 5 (May 2011)

metal-organic compounds

si2348 scheme

Acta Cryst. (2011). E67, m533    [ doi:10.1107/S1600536811011743 ]

Lithium difluoro(oxalato)borate tetramethylene sulfone disolvate

J. L. Allen, P. D. Boyle and W. A. Henderson

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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