Abstract
In the title compound, C14H10O6S2, the dihedral angle between the planes of the two phenylene rings is 55.9 (1)°. Both hydroxy groups form intramolecular hydrogen bonds; however, one of them also engages in intermolecular hydrogen bonding. In the crystal, molecules are connected into helical chains by O—H⋯O hydrogen bonds. The crystal studied was an inversion twin with a domain ratio of 0.51 (13):0.49 (13).
Highlights
In the title compound, C14H10O6S2, the dihedral angle between the planes of the two phenylene rings is 55.9 (1)
Both hydroxy groups form intramolecular hydrogen bonds; one of them engages in intermolecular hydrogen bonding
Molecules are connected into helical chains by O—HÁ Á ÁO hydrogen bonds
Summary
Key indicators: single-crystal X-ray study; T = 298 K; mean (C–C) = 0.005 A; R factor = 0.045; wR factor = 0.103; data-to-parameter ratio = 11.9. C14H10O6S2, the dihedral angle between the planes of the two phenylene rings is 55.9 (1). Both hydroxy groups form intramolecular hydrogen bonds; one of them engages in intermolecular hydrogen bonding. The crystal studied was an inversion twin with a domain ratio of 0.51 (13):0.49 (13). Related literature For hydrogen bonds and – stacking interactions in aromatic compounds, see: Janiak (2000); Hunter & Sanders (1990); Orr et al (1999); Kaafarani et al (2001). For a comparison of bond dimensions for disulfide compounds, see: Kaitner & Pavlovic (1997); Korp & Bernal (1984); Ni et al (2004); Sacerdoti et al (1975)
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