Research Article: 2-[(2-Carboxy­phen­yl)disulfan­yl]benzoic acid–4,4′-bipyridyl N,N′-dioxide (1/2)

Date Published: June 01, 2010

Publisher: International Union of Crystallography

Author(s): Rodolfo Moreno-Fuquen, Javier Ellena, Carlos A. De Simone, Leandro Ribeiro, Regina Helena De Almeida Santos.


In the title 2:1 adduct, C14H10O4S2·0.5C10H8N2O2, which arose from an unexpected oxidation of a precursor, the dihedral angle between the aromatic rings in the disulfide is 82.51 (11)°. In the crystal, the molecules are linked by O—H⋯O, O—H⋯N and C—H⋯O interactions, generating sheets.

Partial Text

For structural studies of 4,4′-bipyridyl N,N′-dioxide, see: Lou & Huang (2007 ▶); Reddy et al. (2006 ▶). For the disulfide bond in polypeptide chains, see: Gortner & Hoffman (1941 ▶). For a related structure, see: Moreno-Fuquen et al. (2003 ▶). For hydrogen bonding, see: Etter (1990 ▶); Nardelli (1995 ▶).




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