4,4′-Di­thio­diphenol: a chain of rings generated by two pairs of O—H⋯O hydrogen bonds

@article{Ni200444DithiodiphenolAC,
  title={4,4′-Di­thio­diphenol: a chain of rings generated by two pairs of O—H⋯O hydrogen bonds},
  author={Qing-ling Ni and Xiu-Jian Wang and Jian-Qiang Zeng and Hong-Xia Jian},
  journal={Acta Crystallographica Section E-structure Reports Online},
  year={2004},
  volume={60}
}
In the title compound, C12H10O2S2, mol­ecules are linked into chains by two pairs of O—H⋯O hydrogen bonds [H⋯O = 1.99 (2) A, O⋯O = 2.759 (2) and 2.783 (2) A and O—H⋯O = 162 and 165 (2)°]. Four hydroxy groups are linked together via hydrogen bonds to form a four-membered ring, which acts as a supramolecular synthon in the construction of one-dimensional chains of rings. 
6,6′-Dihydroxy-3,3′-dithiodibenzoic acid