Date Published: May 01, 2011
Publisher: International Union of Crystallography
Author(s): Yong Wang, Jing-Yi Xu, De-Yong Li, Lu Shi.
In the title compound, C10H6N4O4, the pyridine rings are oriented at a dihedral angle of 67.8 (1)°. The O-atom pairs are trans, each displaced by a similar distance [average = 0.2331 (2) Å] out of the attached pyridine ring plane. In the crystal, intermolecular C—H⋯O and C—H⋯N interactions link the molecules into a three-dimensional network.
For applications of the title compound, see: Katritzky et al. (2006 ▶). For the synthesis, see: Kaczmarek et al. (1980 ▶). For bond-length data, see: Allen et al. (1987 ▶).