Acta Cryst. (2008). E64, o1724  [ doi:10.1107/S160053680802480X ]

Bis(4,6-diaminopyrimidin-2-yl) disulfide dimethyl sufoxide disolvate

E. Papastavrou, S. Shakhatreh, P. D. Akrivos and M. Gdaniec

Abstract: The title compound, C₈H₁₀N₈S₂·2C₂H₆SO, was obtained unintentionally during an attempt to prepare a thiolate derivative of trimethyltin. The complete disulfide molecule is generated by twofold rotation symmetry and the C-S-S-C torsion angle around the S-S bond is -85.70 (10)°. The molecules are connected via N-HN hydrogen bonds into strongly corrugated layers parallel to (001), generating an R₂²(8) motif. The solvent molecule, which exhibits minor disorder of its S atom [site occupancies = 0.9591 (18) and 0.0409 (18)], is linked to this layer via a pair of N-HO interactions.

Online 9 August 2008

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