title: 3,3'-Dinitro-4,4'-bipyridine.
abstract: In the title compound, C(10)H(6)N(4)O(4), 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, inter-molecular C-H⋯O and C-H⋯N inter-actions link the mol-ecules into a three-dimensional network.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.forename: Jing-Yi
authors.initials: JY
authors.lastname: Xu
authors.forename: De-Yong
authors.initials: DY
authors.lastname: Li
authors.forename: Lu
authors.initials: L
authors.lastname: Shi