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—H⋯N hydrogen bonds into strongly corrugated layers parallel to (001), generating an R 2 2(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—H⋯O interactions.
Highlights
The title compound, C8H10N8S2Á2C2H6SO, 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 À85.70 (10)
The molecules are connected via N—HÁ Á ÁN hydrogen bonds into strongly corrugated layers parallel to (001), generating an R22(8) motif
Summary
Key indicators: single-crystal X-ray study; T = 130 K; mean (C–C) = 0.002 A; disorder in solvent or counterion; R factor = 0.030; wR factor = 0.078; data-toparameter ratio = 15.3. The complete disulfide molecule is generated by twofold rotation symmetry and the C—S—S—C torsion angle around the S—S bond is À85.70 (10). The molecules are connected via N—HÁ Á ÁN 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—HÁ Á ÁO interactions. Related literature For information on the preferred conformations of organic disulfides, see: Saczewski et al (2006)
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