Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 1 (January 2012)

organic compounds

Acta Cryst. (2012). E68, o90    [ doi:10.1107/S1600536811052718 ]

Bis(trimethyl­ammonium) naphthalene-1,5-disulfonate

Y. Jin

Abstract: The asymmetric unit of the title compound, 2C3H10N+·C10H6S2O62-, contains a half-anion, which is completed by inversion symmetry, and one cation. The cations and anions are associated via strong N-H...O(sulfonate) hydrogen-bonding inter­actions, forming cation-anion-cation groups. Secondary inter­actions such as C-H(ammonium)...O(sulf­on­ate) and van der Waals inter­actions link the cations and anions together in a three-dimensional crystal structure, with zigzag rows of cations lying between layers of anions.

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