Acta Cryst. (2010). E66, o2668  [ doi:10.1107/S1600536810038006 ]

1,1',2,2'-Tetramethyl-3,3'-(p-phenylenedimethylene)diimidazol-1-ium bis[bis(trifluoromethylsulfonyl)imide]

M. S. Abdul Rahim, Y. Alias and S. W. Ng

Abstract: The cation of the imidazolium-based ionic-liquid title salt, C₁₆H₂₄N₄²⁺·2C₂F₆NO₄S₂^-, lies on a center of inversion; in the cation, the five-membered imidazolium ring is aligned at 84.4 (1)° with respect to the phenylene ring; the angle at the methylene C atom is 113.0 (2)°. In the anion, the negative charge formally resides on the two-coordinate N atom; the S-N-S angle at this atom is 125.2 (1)°.

Online 30 September 2010

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